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Finding the Fourth Proportional to 83,393.93, 115,036.93 and 49,369.22

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Solution

The fourth proportional to 83,393.93, 115,036.93 and 49,369.22 is: 68,101.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,393.93 : 115,036.93 = 49,369.22 : x
  2. Step 2: Convert to fraction form
    83,393.93/115,036.93 = 49,369.22/x
  3. Step 3: Cross multiply
    83,393.93x = 115,036.93 × 49,369.22
  4. Step 4: Simplify right side
    83,393.93x = 5,679,283,505.29
  5. Step 5: Solve for x
    x = 5,679,283,505.29/83,393.93
  6. Step 6: Final answer
    x = 68,101.88

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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.