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Finding the Fourth Proportional to 574,247.43, 861,305.54 and 153,556.11

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Solution

The fourth proportional to 574,247.43, 861,305.54 and 153,556.11 is: 230,316.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,247.43 : 861,305.54 = 153,556.11 : x
  2. Step 2: Convert to fraction form
    574,247.43/861,305.54 = 153,556.11/x
  3. Step 3: Cross multiply
    574,247.43x = 861,305.54 × 153,556.11
  4. Step 4: Simplify right side
    574,247.43x = 132,258,727,476.07
  5. Step 5: Solve for x
    x = 132,258,727,476.07/574,247.43
  6. Step 6: Final answer
    x = 230,316.62

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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.