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Finding the Fourth Proportional to 484,148.34, 726,221.30 and 147,187.53

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Solution

The fourth proportional to 484,148.34, 726,221.30 and 147,187.53 is: 220,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,148.34 : 726,221.30 = 147,187.53 : x
  2. Step 2: Convert to fraction form
    484,148.34/726,221.30 = 147,187.53/x
  3. Step 3: Cross multiply
    484,148.34x = 726,221.30 × 147,187.53
  4. Step 4: Simplify right side
    484,148.34x = 106,890,718,644.45
  5. Step 5: Solve for x
    x = 106,890,718,644.45/484,148.34
  6. Step 6: Final answer
    x = 220,780.93

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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.