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Finding the Fourth Proportional to 134,656.67, 185,826.15 and 74,228.33

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Solution

The fourth proportional to 134,656.67, 185,826.15 and 74,228.33 is: 102,435.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,656.67 : 185,826.15 = 74,228.33 : x
  2. Step 2: Convert to fraction form
    134,656.67/185,826.15 = 74,228.33/x
  3. Step 3: Cross multiply
    134,656.67x = 185,826.15 × 74,228.33
  4. Step 4: Simplify right side
    134,656.67x = 13,793,563,855.70
  5. Step 5: Solve for x
    x = 13,793,563,855.70/134,656.67
  6. Step 6: Final answer
    x = 102,435.06

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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.