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Finding the Fourth Proportional to 574,247.18, 861,305.16 and 153,555.86

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Solution

The fourth proportional to 574,247.18, 861,305.16 and 153,555.86 is: 230,316.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,247.18 : 861,305.16 = 153,555.86 : x
  2. Step 2: Convert to fraction form
    574,247.18/861,305.16 = 153,555.86/x
  3. Step 3: Cross multiply
    574,247.18x = 861,305.16 × 153,555.86
  4. Step 4: Simplify right side
    574,247.18x = 132,258,454,566.24
  5. Step 5: Solve for x
    x = 132,258,454,566.24/574,247.18
  6. Step 6: Final answer
    x = 230,316.25

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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.