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Finding the Fourth Proportional to 550,482.78, 825,725.46 and 151,129.02

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Solution

The fourth proportional to 550,482.78, 825,725.46 and 151,129.02 is: 226,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,482.78 : 825,725.46 = 151,129.02 : x
  2. Step 2: Convert to fraction form
    550,482.78/825,725.46 = 151,129.02/x
  3. Step 3: Cross multiply
    550,482.78x = 825,725.46 × 151,129.02
  4. Step 4: Simplify right side
    550,482.78x = 124,791,079,558.85
  5. Step 5: Solve for x
    x = 124,791,079,558.85/550,482.78
  6. Step 6: Final answer
    x = 226,693.88

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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.