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Finding the Fourth Proportional to 187,442, 281,162.76 and 61,082.04

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Solution

The fourth proportional to 187,442, 281,162.76 and 61,082.04 is: 91,622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,442 : 281,162.76 = 61,082.04 : x
  2. Step 2: Convert to fraction form
    187,442/281,162.76 = 61,082.04/x
  3. Step 3: Cross multiply
    187,442x = 281,162.76 × 61,082.04
  4. Step 4: Simplify right side
    187,442x = 17,173,994,952.83
  5. Step 5: Solve for x
    x = 17,173,994,952.83/187,442
  6. Step 6: Final answer
    x = 91,622.98

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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.