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Finding the Fourth Proportional to 483,649.96, 725,474.04 and 128,663.98

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Solution

The fourth proportional to 483,649.96, 725,474.04 and 128,663.98 is: 192,995.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,649.96 : 725,474.04 = 128,663.98 : x
  2. Step 2: Convert to fraction form
    483,649.96/725,474.04 = 128,663.98/x
  3. Step 3: Cross multiply
    483,649.96x = 725,474.04 × 128,663.98
  4. Step 4: Simplify right side
    483,649.96x = 93,342,377,373.08
  5. Step 5: Solve for x
    x = 93,342,377,373.08/483,649.96
  6. Step 6: Final answer
    x = 192,995.73

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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.