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Finding the Fourth Proportional to 337,540.10, 506,504.55 and 127,328.90

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Solution

The fourth proportional to 337,540.10, 506,504.55 and 127,328.90 is: 191,066.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,540.10 : 506,504.55 = 127,328.90 : x
  2. Step 2: Convert to fraction form
    337,540.10/506,504.55 = 127,328.90/x
  3. Step 3: Cross multiply
    337,540.10x = 506,504.55 × 127,328.90
  4. Step 4: Simplify right side
    337,540.10x = 64,492,667,196.50
  5. Step 5: Solve for x
    x = 64,492,667,196.50/337,540.10
  6. Step 6: Final answer
    x = 191,066.68

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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.