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Finding the Fourth Proportional to 325,468.70, 488,116.65 and 100,828.70

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Solution

The fourth proportional to 325,468.70, 488,116.65 and 100,828.70 is: 151,216.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,468.70 : 488,116.65 = 100,828.70 : x
  2. Step 2: Convert to fraction form
    325,468.70/488,116.65 = 100,828.70/x
  3. Step 3: Cross multiply
    325,468.70x = 488,116.65 × 100,828.70
  4. Step 4: Simplify right side
    325,468.70x = 49,216,167,267.86
  5. Step 5: Solve for x
    x = 49,216,167,267.86/325,468.70
  6. Step 6: Final answer
    x = 151,216.28

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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.