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Finding the Fourth Proportional to 318,598.92, 439,663.14 and 175,355.88

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Solution

The fourth proportional to 318,598.92, 439,663.14 and 175,355.88 is: 241,989.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,598.92 : 439,663.14 = 175,355.88 : x
  2. Step 2: Convert to fraction form
    318,598.92/439,663.14 = 175,355.88/x
  3. Step 3: Cross multiply
    318,598.92x = 439,663.14 × 175,355.88
  4. Step 4: Simplify right side
    318,598.92x = 77,097,516,818.26
  5. Step 5: Solve for x
    x = 77,097,516,818.26/318,598.92
  6. Step 6: Final answer
    x = 241,989.26

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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.