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Finding the Fourth Proportional to 337,427.60, 506,335.80 and 127,216.40

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Solution

The fourth proportional to 337,427.60, 506,335.80 and 127,216.40 is: 190,897.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,427.60 : 506,335.80 = 127,216.40 : x
  2. Step 2: Convert to fraction form
    337,427.60/506,335.80 = 127,216.40/x
  3. Step 3: Cross multiply
    337,427.60x = 506,335.80 × 127,216.40
  4. Step 4: Simplify right side
    337,427.60x = 64,414,217,667.12
  5. Step 5: Solve for x
    x = 64,414,217,667.12/337,427.60
  6. Step 6: Final answer
    x = 190,897.89

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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.