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Finding the Fourth Proportional to 186,055.10, 256,753.11 and 101,171.42

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Solution

The fourth proportional to 186,055.10, 256,753.11 and 101,171.42 is: 139,614.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,055.10 : 256,753.11 = 101,171.42 : x
  2. Step 2: Convert to fraction form
    186,055.10/256,753.11 = 101,171.42/x
  3. Step 3: Cross multiply
    186,055.10x = 256,753.11 × 101,171.42
  4. Step 4: Simplify right side
    186,055.10x = 25,976,076,728.12
  5. Step 5: Solve for x
    x = 25,976,076,728.12/186,055.10
  6. Step 6: Final answer
    x = 139,614.97

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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.