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Finding the Fourth Proportional to 187,672.34, 258,978.13 and 102,773.02

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Solution

The fourth proportional to 187,672.34, 258,978.13 and 102,773.02 is: 141,821.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,672.34 : 258,978.13 = 102,773.02 : x
  2. Step 2: Convert to fraction form
    187,672.34/258,978.13 = 102,773.02/x
  3. Step 3: Cross multiply
    187,672.34x = 258,978.13 × 102,773.02
  4. Step 4: Simplify right side
    187,672.34x = 26,615,964,534.05
  5. Step 5: Solve for x
    x = 26,615,964,534.05/187,672.34
  6. Step 6: Final answer
    x = 141,821.46

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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.