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Finding the Fourth Proportional to 187,998.90, 259,436.70 and 101,959.77

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Solution

The fourth proportional to 187,998.90, 259,436.70 and 101,959.77 is: 140,703.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,998.90 : 259,436.70 = 101,959.77 : x
  2. Step 2: Convert to fraction form
    187,998.90/259,436.70 = 101,959.77/x
  3. Step 3: Cross multiply
    187,998.90x = 259,436.70 × 101,959.77
  4. Step 4: Simplify right side
    187,998.90x = 26,452,106,261.56
  5. Step 5: Solve for x
    x = 26,452,106,261.56/187,998.90
  6. Step 6: Final answer
    x = 140,703.52

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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.