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Finding the Fourth Proportional to 110,149.40, 152,005.79 and 62,411.85

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Solution

The fourth proportional to 110,149.40, 152,005.79 and 62,411.85 is: 86,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,149.40 : 152,005.79 = 62,411.85 : x
  2. Step 2: Convert to fraction form
    110,149.40/152,005.79 = 62,411.85/x
  3. Step 3: Cross multiply
    110,149.40x = 152,005.79 × 62,411.85
  4. Step 4: Simplify right side
    110,149.40x = 9,486,962,252.55
  5. Step 5: Solve for x
    x = 9,486,962,252.55/110,149.40
  6. Step 6: Final answer
    x = 86,128.14

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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.