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Finding the Fourth Proportional to 116,873.01, 175,131.11 and 69,394.61

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Solution

The fourth proportional to 116,873.01, 175,131.11 and 69,394.61 is: 103,985.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,873.01 : 175,131.11 = 69,394.61 : x
  2. Step 2: Convert to fraction form
    116,873.01/175,131.11 = 69,394.61/x
  3. Step 3: Cross multiply
    116,873.01x = 175,131.11 × 69,394.61
  4. Step 4: Simplify right side
    116,873.01x = 12,153,153,854.69
  5. Step 5: Solve for x
    x = 12,153,153,854.69/116,873.01
  6. Step 6: Final answer
    x = 103,985.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.