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Finding the Fourth Proportional to 135,850.16, 187,474.04 and 74,598.98

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Solution

The fourth proportional to 135,850.16, 187,474.04 and 74,598.98 is: 102,947.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,850.16 : 187,474.04 = 74,598.98 : x
  2. Step 2: Convert to fraction form
    135,850.16/187,474.04 = 74,598.98/x
  3. Step 3: Cross multiply
    135,850.16x = 187,474.04 × 74,598.98
  4. Step 4: Simplify right side
    135,850.16x = 13,985,371,549.48
  5. Step 5: Solve for x
    x = 13,985,371,549.48/135,850.16
  6. Step 6: Final answer
    x = 102,947.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.