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Finding the Fourth Proportional to 91,246.40, 136,675.20 and 73,750.40

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Solution

The fourth proportional to 91,246.40, 136,675.20 and 73,750.40 is: 110,468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,246.40 : 136,675.20 = 73,750.40 : x
  2. Step 2: Convert to fraction form
    91,246.40/136,675.20 = 73,750.40/x
  3. Step 3: Cross multiply
    91,246.40x = 136,675.20 × 73,750.40
  4. Step 4: Simplify right side
    91,246.40x = 10,079,850,670.08
  5. Step 5: Solve for x
    x = 10,079,850,670.08/91,246.40
  6. Step 6: Final answer
    x = 110,468.48

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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.