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Finding the Fourth Proportional to 550,475.55, 825,515.15 and 190,548.62

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Solution

The fourth proportional to 550,475.55, 825,515.15 and 190,548.62 is: 285,754.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,475.55 : 825,515.15 = 190,548.62 : x
  2. Step 2: Convert to fraction form
    550,475.55/825,515.15 = 190,548.62/x
  3. Step 3: Cross multiply
    550,475.55x = 825,515.15 × 190,548.62
  4. Step 4: Simplify right side
    550,475.55x = 157,300,767,541.27
  5. Step 5: Solve for x
    x = 157,300,767,541.27/550,475.55
  6. Step 6: Final answer
    x = 285,754.32

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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.