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Finding the Fourth Proportional to 91,593.53, 137,187.32 and 70,377.41

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Solution

The fourth proportional to 91,593.53, 137,187.32 and 70,377.41 is: 105,410.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,593.53 : 137,187.32 = 70,377.41 : x
  2. Step 2: Convert to fraction form
    91,593.53/137,187.32 = 70,377.41/x
  3. Step 3: Cross multiply
    91,593.53x = 137,187.32 × 70,377.41
  4. Step 4: Simplify right side
    91,593.53x = 9,654,888,266.44
  5. Step 5: Solve for x
    x = 9,654,888,266.44/91,593.53
  6. Step 6: Final answer
    x = 105,410.16

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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.