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Finding the Fourth Proportional to 244,579.30, 366,978.30 and 86,920.90

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Solution

The fourth proportional to 244,579.30, 366,978.30 and 86,920.90 is: 130,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,579.30 : 366,978.30 = 86,920.90 : x
  2. Step 2: Convert to fraction form
    244,579.30/366,978.30 = 86,920.90/x
  3. Step 3: Cross multiply
    244,579.30x = 366,978.30 × 86,920.90
  4. Step 4: Simplify right side
    244,579.30x = 31,898,084,116.47
  5. Step 5: Solve for x
    x = 31,898,084,116.47/244,579.30
  6. Step 6: Final answer
    x = 130,420.21

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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.