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Finding the Fourth Proportional to 187,847.55, 259,239.56 and 102,968.19

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Solution

The fourth proportional to 187,847.55, 259,239.56 and 102,968.19 is: 142,101.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,847.55 : 259,239.56 = 102,968.19 : x
  2. Step 2: Convert to fraction form
    187,847.55/259,239.56 = 102,968.19/x
  3. Step 3: Cross multiply
    187,847.55x = 259,239.56 × 102,968.19
  4. Step 4: Simplify right side
    187,847.55x = 26,693,427,754.76
  5. Step 5: Solve for x
    x = 26,693,427,754.76/187,847.55
  6. Step 6: Final answer
    x = 142,101.55

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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.