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Finding the Fourth Proportional to 118,442, 177,624.48 and 39,535.04

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Solution

The fourth proportional to 118,442, 177,624.48 and 39,535.04 is: 59,289.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,442 : 177,624.48 = 39,535.04 : x
  2. Step 2: Convert to fraction form
    118,442/177,624.48 = 39,535.04/x
  3. Step 3: Cross multiply
    118,442x = 177,624.48 × 39,535.04
  4. Step 4: Simplify right side
    118,442x = 7,022,390,921.78
  5. Step 5: Solve for x
    x = 7,022,390,921.78/118,442
  6. Step 6: Final answer
    x = 59,289.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.