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Finding the Fourth Proportional to 484,523.82, 726,730.36 and 129,565.50

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Solution

The fourth proportional to 484,523.82, 726,730.36 and 129,565.50 is: 194,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,523.82 : 726,730.36 = 129,565.50 : x
  2. Step 2: Convert to fraction form
    484,523.82/726,730.36 = 129,565.50/x
  3. Step 3: Cross multiply
    484,523.82x = 726,730.36 × 129,565.50
  4. Step 4: Simplify right side
    484,523.82x = 94,159,182,458.58
  5. Step 5: Solve for x
    x = 94,159,182,458.58/484,523.82
  6. Step 6: Final answer
    x = 194,333.44

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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.