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Finding the Fourth Proportional to 187,765.55, 259,114.74 and 101,722.55

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Solution

The fourth proportional to 187,765.55, 259,114.74 and 101,722.55 is: 140,376.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,765.55 : 259,114.74 = 101,722.55 : x
  2. Step 2: Convert to fraction form
    187,765.55/259,114.74 = 101,722.55/x
  3. Step 3: Cross multiply
    187,765.55x = 259,114.74 × 101,722.55
  4. Step 4: Simplify right side
    187,765.55x = 26,357,810,799.81
  5. Step 5: Solve for x
    x = 26,357,810,799.81/187,765.55
  6. Step 6: Final answer
    x = 140,376.18

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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.