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Finding the Fourth Proportional to 187,955.52, 259,378.52 and 103,074.42

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Solution

The fourth proportional to 187,955.52, 259,378.52 and 103,074.42 is: 142,242.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,955.52 : 259,378.52 = 103,074.42 : x
  2. Step 2: Convert to fraction form
    187,955.52/259,378.52 = 103,074.42/x
  3. Step 3: Cross multiply
    187,955.52x = 259,378.52 × 103,074.42
  4. Step 4: Simplify right side
    187,955.52x = 26,735,290,509.46
  5. Step 5: Solve for x
    x = 26,735,290,509.46/187,955.52
  6. Step 6: Final answer
    x = 142,242.65

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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.