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Finding the Fourth Proportional to 165,061.90, 247,499.90 and 52,715.71

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Solution

The fourth proportional to 165,061.90, 247,499.90 and 52,715.71 is: 79,043.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,061.90 : 247,499.90 = 52,715.71 : x
  2. Step 2: Convert to fraction form
    165,061.90/247,499.90 = 52,715.71/x
  3. Step 3: Cross multiply
    165,061.90x = 247,499.90 × 52,715.71
  4. Step 4: Simplify right side
    165,061.90x = 13,047,133,493.44
  5. Step 5: Solve for x
    x = 13,047,133,493.44/165,061.90
  6. Step 6: Final answer
    x = 79,043.88

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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.