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Finding the Fourth Proportional to 187,470.69, 281,235.36 and 61,081.60

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Solution

The fourth proportional to 187,470.69, 281,235.36 and 61,081.60 is: 91,631.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,470.69 : 281,235.36 = 61,081.60 : x
  2. Step 2: Convert to fraction form
    187,470.69/281,235.36 = 61,081.60/x
  3. Step 3: Cross multiply
    187,470.69x = 281,235.36 × 61,081.60
  4. Step 4: Simplify right side
    187,470.69x = 17,178,304,359.20
  5. Step 5: Solve for x
    x = 17,178,304,359.20/187,470.69
  6. Step 6: Final answer
    x = 91,631.95

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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.