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Finding the Fourth Proportional to 187,730.26, 259,065.60 and 101,687.60

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Solution

The fourth proportional to 187,730.26, 259,065.60 and 101,687.60 is: 140,327.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,730.26 : 259,065.60 = 101,687.60 : x
  2. Step 2: Convert to fraction form
    187,730.26/259,065.60 = 101,687.60/x
  3. Step 3: Cross multiply
    187,730.26x = 259,065.60 × 101,687.60
  4. Step 4: Simplify right side
    187,730.26x = 26,343,759,106.56
  5. Step 5: Solve for x
    x = 26,343,759,106.56/187,730.26
  6. Step 6: Final answer
    x = 140,327.72

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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.