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Finding the Fourth Proportional to 187,642.55, 258,944.76 and 101,600.04

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Solution

The fourth proportional to 187,642.55, 258,944.76 and 101,600.04 is: 140,207.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,642.55 : 258,944.76 = 101,600.04 : x
  2. Step 2: Convert to fraction form
    187,642.55/258,944.76 = 101,600.04/x
  3. Step 3: Cross multiply
    187,642.55x = 258,944.76 × 101,600.04
  4. Step 4: Simplify right side
    187,642.55x = 26,308,797,973.79
  5. Step 5: Solve for x
    x = 26,308,797,973.79/187,642.55
  6. Step 6: Final answer
    x = 140,207.00

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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.