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Finding the Fourth Proportional to 187,671.50, 258,987.36 and 101,630.52

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Solution

The fourth proportional to 187,671.50, 258,987.36 and 101,630.52 is: 140,250.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,671.50 : 258,987.36 = 101,630.52 : x
  2. Step 2: Convert to fraction form
    187,671.50/258,987.36 = 101,630.52/x
  3. Step 3: Cross multiply
    187,671.50x = 258,987.36 × 101,630.52
  4. Step 4: Simplify right side
    187,671.50x = 26,321,020,070.23
  5. Step 5: Solve for x
    x = 26,321,020,070.23/187,671.50
  6. Step 6: Final answer
    x = 140,250.49

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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.