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Finding the Fourth Proportional to 154,489.10, 216,751.30 and 154,489.10

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Solution

The fourth proportional to 154,489.10, 216,751.30 and 154,489.10 is: 216,751.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,489.10 : 216,751.30 = 154,489.10 : x
  2. Step 2: Convert to fraction form
    154,489.10/216,751.30 = 154,489.10/x
  3. Step 3: Cross multiply
    154,489.10x = 216,751.30 × 154,489.10
  4. Step 4: Simplify right side
    154,489.10x = 33,485,713,260.83
  5. Step 5: Solve for x
    x = 33,485,713,260.83/154,489.10
  6. Step 6: Final answer
    x = 216,751.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.