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Finding the Fourth Proportional to 207,760.55, 286,863.12 and 127,297.98

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Solution

The fourth proportional to 207,760.55, 286,863.12 and 127,297.98 is: 175,765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,760.55 : 286,863.12 = 127,297.98 : x
  2. Step 2: Convert to fraction form
    207,760.55/286,863.12 = 127,297.98/x
  3. Step 3: Cross multiply
    207,760.55x = 286,863.12 × 127,297.98
  4. Step 4: Simplify right side
    207,760.55x = 36,517,095,712.50
  5. Step 5: Solve for x
    x = 36,517,095,712.50/207,760.55
  6. Step 6: Final answer
    x = 175,765.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.