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Finding the Fourth Proportional to 348,398.66, 522,649.92 and 123,740.22

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Solution

The fourth proportional to 348,398.66, 522,649.92 and 123,740.22 is: 185,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,398.66 : 522,649.92 = 123,740.22 : x
  2. Step 2: Convert to fraction form
    348,398.66/522,649.92 = 123,740.22/x
  3. Step 3: Cross multiply
    348,398.66x = 522,649.92 × 123,740.22
  4. Step 4: Simplify right side
    348,398.66x = 64,672,816,083.78
  5. Step 5: Solve for x
    x = 64,672,816,083.78/348,398.66
  6. Step 6: Final answer
    x = 185,628.78

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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.