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Finding the Fourth Proportional to 345,130.43, 517,700.99 and 108,473.11

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Solution

The fourth proportional to 345,130.43, 517,700.99 and 108,473.11 is: 162,711.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,130.43 : 517,700.99 = 108,473.11 : x
  2. Step 2: Convert to fraction form
    345,130.43/517,700.99 = 108,473.11/x
  3. Step 3: Cross multiply
    345,130.43x = 517,700.99 × 108,473.11
  4. Step 4: Simplify right side
    345,130.43x = 56,156,635,412.31
  5. Step 5: Solve for x
    x = 56,156,635,412.31/345,130.43
  6. Step 6: Final answer
    x = 162,711.34

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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.