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Finding the Fourth Proportional to 187,805.76, 259,172.76 and 101,764.92

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Solution

The fourth proportional to 187,805.76, 259,172.76 and 101,764.92 is: 140,436.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,805.76 : 259,172.76 = 101,764.92 : x
  2. Step 2: Convert to fraction form
    187,805.76/259,172.76 = 101,764.92/x
  3. Step 3: Cross multiply
    187,805.76x = 259,172.76 × 101,764.92
  4. Step 4: Simplify right side
    187,805.76x = 26,374,695,187.58
  5. Step 5: Solve for x
    x = 26,374,695,187.58/187,805.76
  6. Step 6: Final answer
    x = 140,436.03

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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.