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Finding the Fourth Proportional to 480,111.68, 720,167.76 and 125,124.80

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Solution

The fourth proportional to 480,111.68, 720,167.76 and 125,124.80 is: 187,687.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,111.68 : 720,167.76 = 125,124.80 : x
  2. Step 2: Convert to fraction form
    480,111.68/720,167.76 = 125,124.80/x
  3. Step 3: Cross multiply
    480,111.68x = 720,167.76 × 125,124.80
  4. Step 4: Simplify right side
    480,111.68x = 90,110,846,936.45
  5. Step 5: Solve for x
    x = 90,110,846,936.45/480,111.68
  6. Step 6: Final answer
    x = 187,687.26

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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.