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Finding the Fourth Proportional to 106,755.86, 147,337.73 and 61,432.92

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Solution

The fourth proportional to 106,755.86, 147,337.73 and 61,432.92 is: 84,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,755.86 : 147,337.73 = 61,432.92 : x
  2. Step 2: Convert to fraction form
    106,755.86/147,337.73 = 61,432.92/x
  3. Step 3: Cross multiply
    106,755.86x = 147,337.73 × 61,432.92
  4. Step 4: Simplify right side
    106,755.86x = 9,051,386,672.91
  5. Step 5: Solve for x
    x = 9,051,386,672.91/106,755.86
  6. Step 6: Final answer
    x = 84,785.86

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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.