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Finding the Fourth Proportional to 270,876.52, 406,372.02 and 81,330.04

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Solution

The fourth proportional to 270,876.52, 406,372.02 and 81,330.04 is: 122,012.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,876.52 : 406,372.02 = 81,330.04 : x
  2. Step 2: Convert to fraction form
    270,876.52/406,372.02 = 81,330.04/x
  3. Step 3: Cross multiply
    270,876.52x = 406,372.02 × 81,330.04
  4. Step 4: Simplify right side
    270,876.52x = 33,050,252,641.48
  5. Step 5: Solve for x
    x = 33,050,252,641.48/270,876.52
  6. Step 6: Final answer
    x = 122,012.25

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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.