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Finding the Fourth Proportional to 155,573.66, 233,358.96 and 71,309.90

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Solution

The fourth proportional to 155,573.66, 233,358.96 and 71,309.90 is: 106,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,573.66 : 233,358.96 = 71,309.90 : x
  2. Step 2: Convert to fraction form
    155,573.66/233,358.96 = 71,309.90/x
  3. Step 3: Cross multiply
    155,573.66x = 233,358.96 × 71,309.90
  4. Step 4: Simplify right side
    155,573.66x = 16,640,804,101.70
  5. Step 5: Solve for x
    x = 16,640,804,101.70/155,573.66
  6. Step 6: Final answer
    x = 106,964.15

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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.