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Finding the Fourth Proportional to 111,252.70, 153,490.96 and 62,847.56

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Solution

The fourth proportional to 111,252.70, 153,490.96 and 62,847.56 is: 86,708.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,252.70 : 153,490.96 = 62,847.56 : x
  2. Step 2: Convert to fraction form
    111,252.70/153,490.96 = 62,847.56/x
  3. Step 3: Cross multiply
    111,252.70x = 153,490.96 × 62,847.56
  4. Step 4: Simplify right side
    111,252.70x = 9,646,532,318.06
  5. Step 5: Solve for x
    x = 9,646,532,318.06/111,252.70
  6. Step 6: Final answer
    x = 86,708.30

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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.