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Finding the Fourth Proportional to 124,438.35, 186,745.01 and 112,541.07

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Solution

The fourth proportional to 124,438.35, 186,745.01 and 112,541.07 is: 168,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,438.35 : 186,745.01 = 112,541.07 : x
  2. Step 2: Convert to fraction form
    124,438.35/186,745.01 = 112,541.07/x
  3. Step 3: Cross multiply
    124,438.35x = 186,745.01 × 112,541.07
  4. Step 4: Simplify right side
    124,438.35x = 21,016,482,679.86
  5. Step 5: Solve for x
    x = 21,016,482,679.86/124,438.35
  6. Step 6: Final answer
    x = 168,890.72

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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.