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Finding the Fourth Proportional to 279,594.66, 385,851.54 and 158,747.19

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Solution

The fourth proportional to 279,594.66, 385,851.54 and 158,747.19 is: 219,077.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,594.66 : 385,851.54 = 158,747.19 : x
  2. Step 2: Convert to fraction form
    279,594.66/385,851.54 = 158,747.19/x
  3. Step 3: Cross multiply
    279,594.66x = 385,851.54 × 158,747.19
  4. Step 4: Simplify right side
    279,594.66x = 61,252,847,732.17
  5. Step 5: Solve for x
    x = 61,252,847,732.17/279,594.66
  6. Step 6: Final answer
    x = 219,077.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.