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Finding the Fourth Proportional to 480,506.07, 720,766.09 and 125,520.13

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Solution

The fourth proportional to 480,506.07, 720,766.09 and 125,520.13 is: 188,282.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,506.07 : 720,766.09 = 125,520.13 : x
  2. Step 2: Convert to fraction form
    480,506.07/720,766.09 = 125,520.13/x
  3. Step 3: Cross multiply
    480,506.07x = 720,766.09 × 125,520.13
  4. Step 4: Simplify right side
    480,506.07x = 90,470,649,712.56
  5. Step 5: Solve for x
    x = 90,470,649,712.56/480,506.07
  6. Step 6: Final answer
    x = 188,282.01

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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.