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Finding the Fourth Proportional to 480,098.44, 720,147.90 and 125,111.56

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Solution

The fourth proportional to 480,098.44, 720,147.90 and 125,111.56 is: 187,667.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,098.44 : 720,147.90 = 125,111.56 : x
  2. Step 2: Convert to fraction form
    480,098.44/720,147.90 = 125,111.56/x
  3. Step 3: Cross multiply
    480,098.44x = 720,147.90 × 125,111.56
  4. Step 4: Simplify right side
    480,098.44x = 90,098,827,199.72
  5. Step 5: Solve for x
    x = 90,098,827,199.72/480,098.44
  6. Step 6: Final answer
    x = 187,667.40

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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.