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Finding the Fourth Proportional to 313,087.02, 469,605.62 and 88,438.38

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Solution

The fourth proportional to 313,087.02, 469,605.62 and 88,438.38 is: 132,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,087.02 : 469,605.62 = 88,438.38 : x
  2. Step 2: Convert to fraction form
    313,087.02/469,605.62 = 88,438.38/x
  3. Step 3: Cross multiply
    313,087.02x = 469,605.62 × 88,438.38
  4. Step 4: Simplify right side
    313,087.02x = 41,531,160,271.70
  5. Step 5: Solve for x
    x = 41,531,160,271.70/313,087.02
  6. Step 6: Final answer
    x = 132,650.53

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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.