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Finding the Fourth Proportional to 111,641.52, 154,056.36 and 63,883.92

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Solution

The fourth proportional to 111,641.52, 154,056.36 and 63,883.92 is: 88,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,641.52 : 154,056.36 = 63,883.92 : x
  2. Step 2: Convert to fraction form
    111,641.52/154,056.36 = 63,883.92/x
  3. Step 3: Cross multiply
    111,641.52x = 154,056.36 × 63,883.92
  4. Step 4: Simplify right side
    111,641.52x = 9,841,724,177.73
  5. Step 5: Solve for x
    x = 9,841,724,177.73/111,641.52
  6. Step 6: Final answer
    x = 88,154.70

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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.