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Finding the Fourth Proportional to 312,697.41, 469,073.79 and 88,059.84

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Solution

The fourth proportional to 312,697.41, 469,073.79 and 88,059.84 is: 132,097.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,697.41 : 469,073.79 = 88,059.84 : x
  2. Step 2: Convert to fraction form
    312,697.41/469,073.79 = 88,059.84/x
  3. Step 3: Cross multiply
    312,697.41x = 469,073.79 × 88,059.84
  4. Step 4: Simplify right side
    312,697.41x = 41,306,562,895.59
  5. Step 5: Solve for x
    x = 41,306,562,895.59/312,697.41
  6. Step 6: Final answer
    x = 132,097.55

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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.