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Finding the Fourth Proportional to 56,360.74, 84,572.21 and 31,414.84

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Solution

The fourth proportional to 56,360.74, 84,572.21 and 31,414.84 is: 47,139.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,360.74 : 84,572.21 = 31,414.84 : x
  2. Step 2: Convert to fraction form
    56,360.74/84,572.21 = 31,414.84/x
  3. Step 3: Cross multiply
    56,360.74x = 84,572.21 × 31,414.84
  4. Step 4: Simplify right side
    56,360.74x = 2,656,822,445.60
  5. Step 5: Solve for x
    x = 2,656,822,445.60/56,360.74
  6. Step 6: Final answer
    x = 47,139.59

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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.