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Finding the Fourth Proportional to 76,882.50, 106,073.15 and 60,698.70

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Solution

The fourth proportional to 76,882.50, 106,073.15 and 60,698.70 is: 83,744.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,882.50 : 106,073.15 = 60,698.70 : x
  2. Step 2: Convert to fraction form
    76,882.50/106,073.15 = 60,698.70/x
  3. Step 3: Cross multiply
    76,882.50x = 106,073.15 × 60,698.70
  4. Step 4: Simplify right side
    76,882.50x = 6,438,502,006.41
  5. Step 5: Solve for x
    x = 6,438,502,006.41/76,882.50
  6. Step 6: Final answer
    x = 83,744.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.