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Finding the Fourth Proportional to 325,756.74, 488,515.28 and 112,470.48

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Solution

The fourth proportional to 325,756.74, 488,515.28 and 112,470.48 is: 168,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,756.74 : 488,515.28 = 112,470.48 : x
  2. Step 2: Convert to fraction form
    325,756.74/488,515.28 = 112,470.48/x
  3. Step 3: Cross multiply
    325,756.74x = 488,515.28 × 112,470.48
  4. Step 4: Simplify right side
    325,756.74x = 54,943,548,028.93
  5. Step 5: Solve for x
    x = 54,943,548,028.93/325,756.74
  6. Step 6: Final answer
    x = 168,664.35

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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.