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Finding the Fourth Proportional to 295,640.80, 443,374.80 and 106,079.20

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Solution

The fourth proportional to 295,640.80, 443,374.80 and 106,079.20 is: 159,087.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,640.80 : 443,374.80 = 106,079.20 : x
  2. Step 2: Convert to fraction form
    295,640.80/443,374.80 = 106,079.20/x
  3. Step 3: Cross multiply
    295,640.80x = 443,374.80 × 106,079.20
  4. Step 4: Simplify right side
    295,640.80x = 47,032,844,084.16
  5. Step 5: Solve for x
    x = 47,032,844,084.16/295,640.80
  6. Step 6: Final answer
    x = 159,087.80

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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.