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Finding the Fourth Proportional to 66,367,054.80, 99,550,582.20 and 55,029,646.80

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Solution

The fourth proportional to 66,367,054.80, 99,550,582.20 and 55,029,646.80 is: 82,544,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,367,054.80 : 99,550,582.20 = 55,029,646.80 : x
  2. Step 2: Convert to fraction form
    66,367,054.80/99,550,582.20 = 55,029,646.80/x
  3. Step 3: Cross multiply
    66,367,054.80x = 99,550,582.20 × 55,029,646.80
  4. Step 4: Simplify right side
    66,367,054.80x = 5,478,233,377,200,367
  5. Step 5: Solve for x
    x = 5,478,233,377,200,367/66,367,054.80
  6. Step 6: Final answer
    x = 82,544,470.20

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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.