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Finding the Fourth Proportional to 185,891.91, 256,532.40 and 101,008.98

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Solution

The fourth proportional to 185,891.91, 256,532.40 and 101,008.98 is: 139,393.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,891.91 : 256,532.40 = 101,008.98 : x
  2. Step 2: Convert to fraction form
    185,891.91/256,532.40 = 101,008.98/x
  3. Step 3: Cross multiply
    185,891.91x = 256,532.40 × 101,008.98
  4. Step 4: Simplify right side
    185,891.91x = 25,912,076,060.95
  5. Step 5: Solve for x
    x = 25,912,076,060.95/185,891.91
  6. Step 6: Final answer
    x = 139,393.24

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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.