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Finding the Fourth Proportional to 79,688.40, 119,273.40 and 62,062.80

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Solution

The fourth proportional to 79,688.40, 119,273.40 and 62,062.80 is: 92,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,688.40 : 119,273.40 = 62,062.80 : x
  2. Step 2: Convert to fraction form
    79,688.40/119,273.40 = 62,062.80/x
  3. Step 3: Cross multiply
    79,688.40x = 119,273.40 × 62,062.80
  4. Step 4: Simplify right side
    79,688.40x = 7,402,441,169.52
  5. Step 5: Solve for x
    x = 7,402,441,169.52/79,688.40
  6. Step 6: Final answer
    x = 92,892.33

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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.