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Finding the Fourth Proportional to 134,827.44, 186,062.42 and 74,399.86

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Solution

The fourth proportional to 134,827.44, 186,062.42 and 74,399.86 is: 102,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,827.44 : 186,062.42 = 74,399.86 : x
  2. Step 2: Convert to fraction form
    134,827.44/186,062.42 = 74,399.86/x
  3. Step 3: Cross multiply
    134,827.44x = 186,062.42 × 74,399.86
  4. Step 4: Simplify right side
    134,827.44x = 13,843,017,999.26
  5. Step 5: Solve for x
    x = 13,843,017,999.26/134,827.44
  6. Step 6: Final answer
    x = 102,672.11

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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.