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Finding the Fourth Proportional to 157,216.32, 235,753.92 and 68,425.92

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Solution

The fourth proportional to 157,216.32, 235,753.92 and 68,425.92 is: 102,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,216.32 : 235,753.92 = 68,425.92 : x
  2. Step 2: Convert to fraction form
    157,216.32/235,753.92 = 68,425.92/x
  3. Step 3: Cross multiply
    157,216.32x = 235,753.92 × 68,425.92
  4. Step 4: Simplify right side
    157,216.32x = 16,131,678,869.61
  5. Step 5: Solve for x
    x = 16,131,678,869.61/157,216.32
  6. Step 6: Final answer
    x = 102,608.17

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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.