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Finding the Fourth Proportional to 91,262.48, 136,702.78 and 73,396.58

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Solution

The fourth proportional to 91,262.48, 136,702.78 and 73,396.58 is: 109,941.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,262.48 : 136,702.78 = 73,396.58 : x
  2. Step 2: Convert to fraction form
    91,262.48/136,702.78 = 73,396.58/x
  3. Step 3: Cross multiply
    91,262.48x = 136,702.78 × 73,396.58
  4. Step 4: Simplify right side
    91,262.48x = 10,033,516,528.49
  5. Step 5: Solve for x
    x = 10,033,516,528.49/91,262.48
  6. Step 6: Final answer
    x = 109,941.31

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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.