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Finding the Fourth Proportional to 527,039.69, 790,545.17 and 147,963.56

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Solution

The fourth proportional to 527,039.69, 790,545.17 and 147,963.56 is: 221,941.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,039.69 : 790,545.17 = 147,963.56 : x
  2. Step 2: Convert to fraction form
    527,039.69/790,545.17 = 147,963.56/x
  3. Step 3: Cross multiply
    527,039.69x = 790,545.17 × 147,963.56
  4. Step 4: Simplify right side
    527,039.69x = 116,971,874,111.19
  5. Step 5: Solve for x
    x = 116,971,874,111.19/527,039.69
  6. Step 6: Final answer
    x = 221,941.30

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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.