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Finding the Fourth Proportional to 207,517.52, 310,807.80 and 124,235.60

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Solution

The fourth proportional to 207,517.52, 310,807.80 and 124,235.60 is: 186,072.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,517.52 : 310,807.80 = 124,235.60 : x
  2. Step 2: Convert to fraction form
    207,517.52/310,807.80 = 124,235.60/x
  3. Step 3: Cross multiply
    207,517.52x = 310,807.80 × 124,235.60
  4. Step 4: Simplify right side
    207,517.52x = 38,613,393,517.68
  5. Step 5: Solve for x
    x = 38,613,393,517.68/207,517.52
  6. Step 6: Final answer
    x = 186,072.93

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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.