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Finding the Fourth Proportional to 111,592.68, 153,932.58 and 75,356.52

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Solution

The fourth proportional to 111,592.68, 153,932.58 and 75,356.52 is: 103,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,592.68 : 153,932.58 = 75,356.52 : x
  2. Step 2: Convert to fraction form
    111,592.68/153,932.58 = 75,356.52/x
  3. Step 3: Cross multiply
    111,592.68x = 153,932.58 × 75,356.52
  4. Step 4: Simplify right side
    111,592.68x = 11,599,823,543.42
  5. Step 5: Solve for x
    x = 11,599,823,543.42/111,592.68
  6. Step 6: Final answer
    x = 103,947.89

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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.