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Finding the Fourth Proportional to 83,220.76, 114,818.70 and 49,233.16

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Solution

The fourth proportional to 83,220.76, 114,818.70 and 49,233.16 is: 67,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,220.76 : 114,818.70 = 49,233.16 : x
  2. Step 2: Convert to fraction form
    83,220.76/114,818.70 = 49,233.16/x
  3. Step 3: Cross multiply
    83,220.76x = 114,818.70 × 49,233.16
  4. Step 4: Simplify right side
    83,220.76x = 5,652,887,428.09
  5. Step 5: Solve for x
    x = 5,652,887,428.09/83,220.76
  6. Step 6: Final answer
    x = 67,926.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.