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Finding the Fourth Proportional to 112,993, 155,929.92 and 62,006.60

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Solution

The fourth proportional to 112,993, 155,929.92 and 62,006.60 is: 85,568.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,993 : 155,929.92 = 62,006.60 : x
  2. Step 2: Convert to fraction form
    112,993/155,929.92 = 62,006.60/x
  3. Step 3: Cross multiply
    112,993x = 155,929.92 × 62,006.60
  4. Step 4: Simplify right side
    112,993x = 9,668,684,177.47
  5. Step 5: Solve for x
    x = 9,668,684,177.47/112,993
  6. Step 6: Final answer
    x = 85,568.88

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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.