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Finding the Fourth Proportional to 111,119.60, 153,306.92 and 63,338.48

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Solution

The fourth proportional to 111,119.60, 153,306.92 and 63,338.48 is: 87,385.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,119.60 : 153,306.92 = 63,338.48 : x
  2. Step 2: Convert to fraction form
    111,119.60/153,306.92 = 63,338.48/x
  3. Step 3: Cross multiply
    111,119.60x = 153,306.92 × 63,338.48
  4. Step 4: Simplify right side
    111,119.60x = 9,710,227,286.28
  5. Step 5: Solve for x
    x = 9,710,227,286.28/111,119.60
  6. Step 6: Final answer
    x = 87,385.37

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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.