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Finding the Fourth Proportional to 266,004.48, 398,741.76 and 125,513.28

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Solution

The fourth proportional to 266,004.48, 398,741.76 and 125,513.28 is: 188,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,004.48 : 398,741.76 = 125,513.28 : x
  2. Step 2: Convert to fraction form
    266,004.48/398,741.76 = 125,513.28/x
  3. Step 3: Cross multiply
    266,004.48x = 398,741.76 × 125,513.28
  4. Step 4: Simplify right side
    266,004.48x = 50,047,386,170.57
  5. Step 5: Solve for x
    x = 50,047,386,170.57/266,004.48
  6. Step 6: Final answer
    x = 188,144.90

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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.