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Finding the Fourth Proportional to 111,572.96, 153,979.84 and 63,841.92

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Solution

The fourth proportional to 111,572.96, 153,979.84 and 63,841.92 is: 88,107.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,572.96 : 153,979.84 = 63,841.92 : x
  2. Step 2: Convert to fraction form
    111,572.96/153,979.84 = 63,841.92/x
  3. Step 3: Cross multiply
    111,572.96x = 153,979.84 × 63,841.92
  4. Step 4: Simplify right side
    111,572.96x = 9,830,368,626.89
  5. Step 5: Solve for x
    x = 9,830,368,626.89/111,572.96
  6. Step 6: Final answer
    x = 88,107.09

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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.