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Finding the Fourth Proportional to 187,470.96, 281,235.60 and 61,081.80

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Solution

The fourth proportional to 187,470.96, 281,235.60 and 61,081.80 is: 91,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,470.96 : 281,235.60 = 61,081.80 : x
  2. Step 2: Convert to fraction form
    187,470.96/281,235.60 = 61,081.80/x
  3. Step 3: Cross multiply
    187,470.96x = 281,235.60 × 61,081.80
  4. Step 4: Simplify right side
    187,470.96x = 17,178,376,672.08
  5. Step 5: Solve for x
    x = 17,178,376,672.08/187,470.96
  6. Step 6: Final answer
    x = 91,632.20

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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.