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Finding the Fourth Proportional to 484,235.47, 726,356.85 and 168,691.87

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Solution

The fourth proportional to 484,235.47, 726,356.85 and 168,691.87 is: 253,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,235.47 : 726,356.85 = 168,691.87 : x
  2. Step 2: Convert to fraction form
    484,235.47/726,356.85 = 168,691.87/x
  3. Step 3: Cross multiply
    484,235.47x = 726,356.85 × 168,691.87
  4. Step 4: Simplify right side
    484,235.47x = 122,530,495,313.81
  5. Step 5: Solve for x
    x = 122,530,495,313.81/484,235.47
  6. Step 6: Final answer
    x = 253,039.07

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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.