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Finding the Fourth Proportional to 187,617.69, 258,914.51 and 101,578.55

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Solution

The fourth proportional to 187,617.69, 258,914.51 and 101,578.55 is: 140,179.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,617.69 : 258,914.51 = 101,578.55 : x
  2. Step 2: Convert to fraction form
    187,617.69/258,914.51 = 101,578.55/x
  3. Step 3: Cross multiply
    187,617.69x = 258,914.51 × 101,578.55
  4. Step 4: Simplify right side
    187,617.69x = 26,300,158,697.30
  5. Step 5: Solve for x
    x = 26,300,158,697.30/187,617.69
  6. Step 6: Final answer
    x = 140,179.53

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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.