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Finding the Fourth Proportional to 124,216.80, 186,325.20 and 88,787.40

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Solution

The fourth proportional to 124,216.80, 186,325.20 and 88,787.40 is: 133,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,216.80 : 186,325.20 = 88,787.40 : x
  2. Step 2: Convert to fraction form
    124,216.80/186,325.20 = 88,787.40/x
  3. Step 3: Cross multiply
    124,216.80x = 186,325.20 × 88,787.40
  4. Step 4: Simplify right side
    124,216.80x = 16,543,330,062.48
  5. Step 5: Solve for x
    x = 16,543,330,062.48/124,216.80
  6. Step 6: Final answer
    x = 133,181.10

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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.