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Finding the Fourth Proportional to 299,011.08, 448,680.65 and 121,470.42

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Solution

The fourth proportional to 299,011.08, 448,680.65 and 121,470.42 is: 182,272.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,011.08 : 448,680.65 = 121,470.42 : x
  2. Step 2: Convert to fraction form
    299,011.08/448,680.65 = 121,470.42/x
  3. Step 3: Cross multiply
    299,011.08x = 448,680.65 × 121,470.42
  4. Step 4: Simplify right side
    299,011.08x = 54,501,427,001.37
  5. Step 5: Solve for x
    x = 54,501,427,001.37/299,011.08
  6. Step 6: Final answer
    x = 182,272.27

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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.