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Finding the Fourth Proportional to 188,760.64, 260,489.53 and 103,877.70

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Solution

The fourth proportional to 188,760.64, 260,489.53 and 103,877.70 is: 143,351.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,760.64 : 260,489.53 = 103,877.70 : x
  2. Step 2: Convert to fraction form
    188,760.64/260,489.53 = 103,877.70/x
  3. Step 3: Cross multiply
    188,760.64x = 260,489.53 × 103,877.70
  4. Step 4: Simplify right side
    188,760.64x = 27,059,052,990.79
  5. Step 5: Solve for x
    x = 27,059,052,990.79/188,760.64
  6. Step 6: Final answer
    x = 143,351.14

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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.