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Finding the Fourth Proportional to 66,464,377.60, 99,696,566.40 and 37,699,398.40

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Solution

The fourth proportional to 66,464,377.60, 99,696,566.40 and 37,699,398.40 is: 56,549,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,464,377.60 : 99,696,566.40 = 37,699,398.40 : x
  2. Step 2: Convert to fraction form
    66,464,377.60/99,696,566.40 = 37,699,398.40/x
  3. Step 3: Cross multiply
    66,464,377.60x = 99,696,566.40 × 37,699,398.40
  4. Step 4: Simplify right side
    66,464,377.60x = 3,758,500,575,825,654
  5. Step 5: Solve for x
    x = 3,758,500,575,825,654/66,464,377.60
  6. Step 6: Final answer
    x = 56,549,097.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.