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Finding the Fourth Proportional to 83,954.20, 125,931.30 and 64,927.30

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Solution

The fourth proportional to 83,954.20, 125,931.30 and 64,927.30 is: 97,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,954.20 : 125,931.30 = 64,927.30 : x
  2. Step 2: Convert to fraction form
    83,954.20/125,931.30 = 64,927.30/x
  3. Step 3: Cross multiply
    83,954.20x = 125,931.30 × 64,927.30
  4. Step 4: Simplify right side
    83,954.20x = 8,176,379,294.49
  5. Step 5: Solve for x
    x = 8,176,379,294.49/83,954.20
  6. Step 6: Final answer
    x = 97,390.95

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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.