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Finding the Fourth Proportional to 91,833.66, 137,621.25 and 73,030.14

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Solution

The fourth proportional to 91,833.66, 137,621.25 and 73,030.14 is: 109,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,833.66 : 137,621.25 = 73,030.14 : x
  2. Step 2: Convert to fraction form
    91,833.66/137,621.25 = 73,030.14/x
  3. Step 3: Cross multiply
    91,833.66x = 137,621.25 × 73,030.14
  4. Step 4: Simplify right side
    91,833.66x = 10,050,499,154.48
  5. Step 5: Solve for x
    x = 10,050,499,154.48/91,833.66
  6. Step 6: Final answer
    x = 109,442.43

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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.