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Finding the Fourth Proportional to 92,847.65, 139,044.33 and 83,861.95

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Solution

The fourth proportional to 92,847.65, 139,044.33 and 83,861.95 is: 125,587.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,847.65 : 139,044.33 = 83,861.95 : x
  2. Step 2: Convert to fraction form
    92,847.65/139,044.33 = 83,861.95/x
  3. Step 3: Cross multiply
    92,847.65x = 139,044.33 × 83,861.95
  4. Step 4: Simplify right side
    92,847.65x = 11,660,528,302.63
  5. Step 5: Solve for x
    x = 11,660,528,302.63/92,847.65
  6. Step 6: Final answer
    x = 125,587.77

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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.