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Finding the Fourth Proportional to 312,803.70, 469,233.18 and 88,166.04

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Solution

The fourth proportional to 312,803.70, 469,233.18 and 88,166.04 is: 132,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,803.70 : 469,233.18 = 88,166.04 : x
  2. Step 2: Convert to fraction form
    312,803.70/469,233.18 = 88,166.04/x
  3. Step 3: Cross multiply
    312,803.70x = 469,233.18 × 88,166.04
  4. Step 4: Simplify right side
    312,803.70x = 41,370,431,317.21
  5. Step 5: Solve for x
    x = 41,370,431,317.21/312,803.70
  6. Step 6: Final answer
    x = 132,256.85

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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.