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Finding the Fourth Proportional to 88,585.84, 122,149.14 and 72,402.92

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Solution

The fourth proportional to 88,585.84, 122,149.14 and 72,402.92 is: 99,834.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,585.84 : 122,149.14 = 72,402.92 : x
  2. Step 2: Convert to fraction form
    88,585.84/122,149.14 = 72,402.92/x
  3. Step 3: Cross multiply
    88,585.84x = 122,149.14 × 72,402.92
  4. Step 4: Simplify right side
    88,585.84x = 8,843,954,411.49
  5. Step 5: Solve for x
    x = 8,843,954,411.49/88,585.84
  6. Step 6: Final answer
    x = 99,834.85

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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.