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Finding the Fourth Proportional to 78,733.60, 118,064.86 and 22,560.86

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Solution

The fourth proportional to 78,733.60, 118,064.86 and 22,560.86 is: 33,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,733.60 : 118,064.86 = 22,560.86 : x
  2. Step 2: Convert to fraction form
    78,733.60/118,064.86 = 22,560.86/x
  3. Step 3: Cross multiply
    78,733.60x = 118,064.86 × 22,560.86
  4. Step 4: Simplify right side
    78,733.60x = 2,663,644,777.38
  5. Step 5: Solve for x
    x = 2,663,644,777.38/78,733.60
  6. Step 6: Final answer
    x = 33,831.11

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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.