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Finding the Fourth Proportional to 636,997.52, 955,529.76 and 163,686.08

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Solution

The fourth proportional to 636,997.52, 955,529.76 and 163,686.08 is: 245,537.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,997.52 : 955,529.76 = 163,686.08 : x
  2. Step 2: Convert to fraction form
    636,997.52/955,529.76 = 163,686.08/x
  3. Step 3: Cross multiply
    636,997.52x = 955,529.76 × 163,686.08
  4. Step 4: Simplify right side
    636,997.52x = 156,406,920,737.74
  5. Step 5: Solve for x
    x = 156,406,920,737.74/636,997.52
  6. Step 6: Final answer
    x = 245,537.72

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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.