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Finding the Fourth Proportional to 92,965.52, 139,103.76 and 55,545.95

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Solution

The fourth proportional to 92,965.52, 139,103.76 and 55,545.95 is: 83,113.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,965.52 : 139,103.76 = 55,545.95 : x
  2. Step 2: Convert to fraction form
    92,965.52/139,103.76 = 55,545.95/x
  3. Step 3: Cross multiply
    92,965.52x = 139,103.76 × 55,545.95
  4. Step 4: Simplify right side
    92,965.52x = 7,726,650,497.77
  5. Step 5: Solve for x
    x = 7,726,650,497.77/92,965.52
  6. Step 6: Final answer
    x = 83,113.08

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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.