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Finding the Fourth Proportional to 299,127.66, 448,776.28 and 121,761.96

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Solution

The fourth proportional to 299,127.66, 448,776.28 and 121,761.96 is: 182,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,127.66 : 448,776.28 = 121,761.96 : x
  2. Step 2: Convert to fraction form
    299,127.66/448,776.28 = 121,761.96/x
  3. Step 3: Cross multiply
    299,127.66x = 448,776.28 × 121,761.96
  4. Step 4: Simplify right side
    299,127.66x = 54,643,879,454.31
  5. Step 5: Solve for x
    x = 54,643,879,454.31/299,127.66
  6. Step 6: Final answer
    x = 182,677.45

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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.