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Finding the Fourth Proportional to 482,407.08, 723,645.16 and 127,417.56

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Solution

The fourth proportional to 482,407.08, 723,645.16 and 127,417.56 is: 191,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,407.08 : 723,645.16 = 127,417.56 : x
  2. Step 2: Convert to fraction form
    482,407.08/723,645.16 = 127,417.56/x
  3. Step 3: Cross multiply
    482,407.08x = 723,645.16 × 127,417.56
  4. Step 4: Simplify right side
    482,407.08x = 92,205,100,593.01
  5. Step 5: Solve for x
    x = 92,205,100,593.01/482,407.08
  6. Step 6: Final answer
    x = 191,135.46

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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.