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Finding the Fourth Proportional to 337,412.20, 506,312.70 and 127,071.40

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Solution

The fourth proportional to 337,412.20, 506,312.70 and 127,071.40 is: 190,680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,412.20 : 506,312.70 = 127,071.40 : x
  2. Step 2: Convert to fraction form
    337,412.20/506,312.70 = 127,071.40/x
  3. Step 3: Cross multiply
    337,412.20x = 506,312.70 × 127,071.40
  4. Step 4: Simplify right side
    337,412.20x = 64,337,863,626.78
  5. Step 5: Solve for x
    x = 64,337,863,626.78/337,412.20
  6. Step 6: Final answer
    x = 190,680.31

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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.