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Finding the Fourth Proportional to 187,753.01, 259,105.59 and 102,870.05

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Solution

The fourth proportional to 187,753.01, 259,105.59 and 102,870.05 is: 141,964.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,753.01 : 259,105.59 = 102,870.05 : x
  2. Step 2: Convert to fraction form
    187,753.01/259,105.59 = 102,870.05/x
  3. Step 3: Cross multiply
    187,753.01x = 259,105.59 × 102,870.05
  4. Step 4: Simplify right side
    187,753.01x = 26,654,203,703.05
  5. Step 5: Solve for x
    x = 26,654,203,703.05/187,753.01
  6. Step 6: Final answer
    x = 141,964.19

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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.