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Finding the Fourth Proportional to 482,407.06, 723,645.16 and 127,417.54

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Solution

The fourth proportional to 482,407.06, 723,645.16 and 127,417.54 is: 191,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,407.06 : 723,645.16 = 127,417.54 : x
  2. Step 2: Convert to fraction form
    482,407.06/723,645.16 = 127,417.54/x
  3. Step 3: Cross multiply
    482,407.06x = 723,645.16 × 127,417.54
  4. Step 4: Simplify right side
    482,407.06x = 92,205,086,120.11
  5. Step 5: Solve for x
    x = 92,205,086,120.11/482,407.06
  6. Step 6: Final answer
    x = 191,135.44

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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.