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Finding the Fourth Proportional to 187,722.65, 259,055.93 and 101,679.69

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Solution

The fourth proportional to 187,722.65, 259,055.93 and 101,679.69 is: 140,317.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,722.65 : 259,055.93 = 101,679.69 : x
  2. Step 2: Convert to fraction form
    187,722.65/259,055.93 = 101,679.69/x
  3. Step 3: Cross multiply
    187,722.65x = 259,055.93 × 101,679.69
  4. Step 4: Simplify right side
    187,722.65x = 26,340,726,655.06
  5. Step 5: Solve for x
    x = 26,340,726,655.06/187,722.65
  6. Step 6: Final answer
    x = 140,317.25

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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.