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Finding the Fourth Proportional to 527,324.72, 790,981.14 and 127,969.88

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Solution

The fourth proportional to 527,324.72, 790,981.14 and 127,969.88 is: 191,953.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,324.72 : 790,981.14 = 127,969.88 : x
  2. Step 2: Convert to fraction form
    527,324.72/790,981.14 = 127,969.88/x
  3. Step 3: Cross multiply
    527,324.72x = 790,981.14 × 127,969.88
  4. Step 4: Simplify right side
    527,324.72x = 101,221,761,568.06
  5. Step 5: Solve for x
    x = 101,221,761,568.06/527,324.72
  6. Step 6: Final answer
    x = 191,953.38

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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.