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Finding the Fourth Proportional to 187,649.92, 258,951.84 and 107,075.98

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Solution

The fourth proportional to 187,649.92, 258,951.84 and 107,075.98 is: 147,761.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,649.92 : 258,951.84 = 107,075.98 : x
  2. Step 2: Convert to fraction form
    187,649.92/258,951.84 = 107,075.98/x
  3. Step 3: Cross multiply
    187,649.92x = 258,951.84 × 107,075.98
  4. Step 4: Simplify right side
    187,649.92x = 27,727,522,040.80
  5. Step 5: Solve for x
    x = 27,727,522,040.80/187,649.92
  6. Step 6: Final answer
    x = 147,761.97

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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.