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Finding the Fourth Proportional to 92,963.52, 139,100.76 and 55,543.95

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Solution

The fourth proportional to 92,963.52, 139,100.76 and 55,543.95 is: 83,110.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,963.52 : 139,100.76 = 55,543.95 : x
  2. Step 2: Convert to fraction form
    92,963.52/139,100.76 = 55,543.95/x
  3. Step 3: Cross multiply
    92,963.52x = 139,100.76 × 55,543.95
  4. Step 4: Simplify right side
    92,963.52x = 7,726,205,658.40
  5. Step 5: Solve for x
    x = 7,726,205,658.40/92,963.52
  6. Step 6: Final answer
    x = 83,110.08

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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.