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Finding the Fourth Proportional to 134,656.48, 185,827.21 and 74,229.31

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Solution

The fourth proportional to 134,656.48, 185,827.21 and 74,229.31 is: 102,437.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,656.48 : 185,827.21 = 74,229.31 : x
  2. Step 2: Convert to fraction form
    134,656.48/185,827.21 = 74,229.31/x
  3. Step 3: Cross multiply
    134,656.48x = 185,827.21 × 74,229.31
  4. Step 4: Simplify right side
    134,656.48x = 13,793,826,041.78
  5. Step 5: Solve for x
    x = 13,793,826,041.78/134,656.48
  6. Step 6: Final answer
    x = 102,437.15

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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.