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Finding the Fourth Proportional to 187,498.80, 281,305.80 and 148,071.60

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Solution

The fourth proportional to 187,498.80, 281,305.80 and 148,071.60 is: 222,152.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,498.80 : 281,305.80 = 148,071.60 : x
  2. Step 2: Convert to fraction form
    187,498.80/281,305.80 = 148,071.60/x
  3. Step 3: Cross multiply
    187,498.80x = 281,305.80 × 148,071.60
  4. Step 4: Simplify right side
    187,498.80x = 41,653,399,895.28
  5. Step 5: Solve for x
    x = 41,653,399,895.28/187,498.80
  6. Step 6: Final answer
    x = 222,152.89

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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.