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Finding the Fourth Proportional to 313,028.16, 469,570.35 and 88,390.86

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Solution

The fourth proportional to 313,028.16, 469,570.35 and 88,390.86 is: 132,594.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,028.16 : 469,570.35 = 88,390.86 : x
  2. Step 2: Convert to fraction form
    313,028.16/469,570.35 = 88,390.86/x
  3. Step 3: Cross multiply
    313,028.16x = 469,570.35 × 88,390.86
  4. Step 4: Simplify right side
    313,028.16x = 41,505,727,067.00
  5. Step 5: Solve for x
    x = 41,505,727,067.00/313,028.16
  6. Step 6: Final answer
    x = 132,594.23

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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.