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Finding the Fourth Proportional to 550,487.72, 825,724.20 and 151,128.02

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Solution

The fourth proportional to 550,487.72, 825,724.20 and 151,128.02 is: 226,690.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,487.72 : 825,724.20 = 151,128.02 : x
  2. Step 2: Convert to fraction form
    550,487.72/825,724.20 = 151,128.02/x
  3. Step 3: Cross multiply
    550,487.72x = 825,724.20 × 151,128.02
  4. Step 4: Simplify right side
    550,487.72x = 124,790,063,412.08
  5. Step 5: Solve for x
    x = 124,790,063,412.08/550,487.72
  6. Step 6: Final answer
    x = 226,690.00

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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.