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Finding the Fourth Proportional to 47,865.74, 72,159.66 and 44,655.71

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Solution

The fourth proportional to 47,865.74, 72,159.66 and 44,655.71 is: 67,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,865.74 : 72,159.66 = 44,655.71 : x
  2. Step 2: Convert to fraction form
    47,865.74/72,159.66 = 44,655.71/x
  3. Step 3: Cross multiply
    47,865.74x = 72,159.66 × 44,655.71
  4. Step 4: Simplify right side
    47,865.74x = 3,222,340,489.86
  5. Step 5: Solve for x
    x = 3,222,340,489.86/47,865.74
  6. Step 6: Final answer
    x = 67,320.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.