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Finding the Fourth Proportional to 591,387.32, 887,068.25 and 164,911.78

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Solution

The fourth proportional to 591,387.32, 887,068.25 and 164,911.78 is: 247,364.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,387.32 : 887,068.25 = 164,911.78 : x
  2. Step 2: Convert to fraction form
    591,387.32/887,068.25 = 164,911.78/x
  3. Step 3: Cross multiply
    591,387.32x = 887,068.25 × 164,911.78
  4. Step 4: Simplify right side
    591,387.32x = 146,288,001,046.76
  5. Step 5: Solve for x
    x = 146,288,001,046.76/591,387.32
  6. Step 6: Final answer
    x = 247,364.12

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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.