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Finding the Fourth Proportional to 154,480.90, 231,721.35 and 154,480.90

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Solution

The fourth proportional to 154,480.90, 231,721.35 and 154,480.90 is: 231,721.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,480.90 : 231,721.35 = 154,480.90 : x
  2. Step 2: Convert to fraction form
    154,480.90/231,721.35 = 154,480.90/x
  3. Step 3: Cross multiply
    154,480.90x = 231,721.35 × 154,480.90
  4. Step 4: Simplify right side
    154,480.90x = 35,796,522,697.22
  5. Step 5: Solve for x
    x = 35,796,522,697.22/154,480.90
  6. Step 6: Final answer
    x = 231,721.35

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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.