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Finding the Fourth Proportional to 358,618.72, 537,524.39 and 156,385.01

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Solution

The fourth proportional to 358,618.72, 537,524.39 and 156,385.01 is: 234,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,618.72 : 537,524.39 = 156,385.01 : x
  2. Step 2: Convert to fraction form
    358,618.72/537,524.39 = 156,385.01/x
  3. Step 3: Cross multiply
    358,618.72x = 537,524.39 × 156,385.01
  4. Step 4: Simplify right side
    358,618.72x = 84,060,753,635.85
  5. Step 5: Solve for x
    x = 84,060,753,635.85/358,618.72
  6. Step 6: Final answer
    x = 234,401.47

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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.