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Finding the Fourth Proportional to 351,328.91, 527,091.47 and 141,114.47

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Solution

The fourth proportional to 351,328.91, 527,091.47 and 141,114.47 is: 211,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,328.91 : 527,091.47 = 141,114.47 : x
  2. Step 2: Convert to fraction form
    351,328.91/527,091.47 = 141,114.47/x
  3. Step 3: Cross multiply
    351,328.91x = 527,091.47 × 141,114.47
  4. Step 4: Simplify right side
    351,328.91x = 74,380,233,430.57
  5. Step 5: Solve for x
    x = 74,380,233,430.57/351,328.91
  6. Step 6: Final answer
    x = 211,711.11

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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.