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Finding the Fourth Proportional to 337,419.60, 506,323.80 and 127,208.40

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Solution

The fourth proportional to 337,419.60, 506,323.80 and 127,208.40 is: 190,885.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,419.60 : 506,323.80 = 127,208.40 : x
  2. Step 2: Convert to fraction form
    337,419.60/506,323.80 = 127,208.40/x
  3. Step 3: Cross multiply
    337,419.60x = 506,323.80 × 127,208.40
  4. Step 4: Simplify right side
    337,419.60x = 64,408,640,479.92
  5. Step 5: Solve for x
    x = 64,408,640,479.92/337,419.60
  6. Step 6: Final answer
    x = 190,885.89

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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.