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Finding the Fourth Proportional to 231,004.04, 318,785.54 and 125,020.04

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Solution

The fourth proportional to 231,004.04, 318,785.54 and 125,020.04 is: 172,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,004.04 : 318,785.54 = 125,020.04 : x
  2. Step 2: Convert to fraction form
    231,004.04/318,785.54 = 125,020.04/x
  3. Step 3: Cross multiply
    231,004.04x = 318,785.54 × 125,020.04
  4. Step 4: Simplify right side
    231,004.04x = 39,854,580,962.22
  5. Step 5: Solve for x
    x = 39,854,580,962.22/231,004.04
  6. Step 6: Final answer
    x = 172,527.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.