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Finding the Fourth Proportional to 187,807.16, 281,728.16 and 61,448.18

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Solution

The fourth proportional to 187,807.16, 281,728.16 and 61,448.18 is: 92,177.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,807.16 : 281,728.16 = 61,448.18 : x
  2. Step 2: Convert to fraction form
    187,807.16/281,728.16 = 61,448.18/x
  3. Step 3: Cross multiply
    187,807.16x = 281,728.16 × 61,448.18
  4. Step 4: Simplify right side
    187,807.16x = 17,311,680,970.87
  5. Step 5: Solve for x
    x = 17,311,680,970.87/187,807.16
  6. Step 6: Final answer
    x = 92,177.96

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1.5x scale

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.