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Finding the Fourth Proportional to 79,815.60, 119,575.80 and 46,551.60

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Solution

The fourth proportional to 79,815.60, 119,575.80 and 46,551.60 is: 69,741.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,815.60 : 119,575.80 = 46,551.60 : x
  2. Step 2: Convert to fraction form
    79,815.60/119,575.80 = 46,551.60/x
  3. Step 3: Cross multiply
    79,815.60x = 119,575.80 × 46,551.60
  4. Step 4: Simplify right side
    79,815.60x = 5,566,444,811.28
  5. Step 5: Solve for x
    x = 5,566,444,811.28/79,815.60
  6. Step 6: Final answer
    x = 69,741.31

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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.