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Finding the Fourth Proportional to 86,295.60, 119,087.69 and 48,569.85

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Solution

The fourth proportional to 86,295.60, 119,087.69 and 48,569.85 is: 67,026.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,295.60 : 119,087.69 = 48,569.85 : x
  2. Step 2: Convert to fraction form
    86,295.60/119,087.69 = 48,569.85/x
  3. Step 3: Cross multiply
    86,295.60x = 119,087.69 × 48,569.85
  4. Step 4: Simplify right side
    86,295.60x = 5,784,070,997.30
  5. Step 5: Solve for x
    x = 5,784,070,997.30/86,295.60
  6. Step 6: Final answer
    x = 67,026.26

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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.