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Finding the Fourth Proportional to 136,940.97, 205,408.72 and 62,047.16

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Solution

The fourth proportional to 136,940.97, 205,408.72 and 62,047.16 is: 93,069.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,940.97 : 205,408.72 = 62,047.16 : x
  2. Step 2: Convert to fraction form
    136,940.97/205,408.72 = 62,047.16/x
  3. Step 3: Cross multiply
    136,940.97x = 205,408.72 × 62,047.16
  4. Step 4: Simplify right side
    136,940.97x = 12,745,027,715.24
  5. Step 5: Solve for x
    x = 12,745,027,715.24/136,940.97
  6. Step 6: Final answer
    x = 93,069.50

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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.