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Finding the Fourth Proportional to 187,615.98, 258,910.16 and 101,574.98

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Solution

The fourth proportional to 187,615.98, 258,910.16 and 101,574.98 is: 140,173.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,615.98 : 258,910.16 = 101,574.98 : x
  2. Step 2: Convert to fraction form
    187,615.98/258,910.16 = 101,574.98/x
  3. Step 3: Cross multiply
    187,615.98x = 258,910.16 × 101,574.98
  4. Step 4: Simplify right side
    187,615.98x = 26,298,794,323.80
  5. Step 5: Solve for x
    x = 26,298,794,323.80/187,615.98
  6. Step 6: Final answer
    x = 140,173.53

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1.5x scale

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.