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Finding the Fourth Proportional to 351,058.48, 526,602.71 and 137,872.59

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Solution

The fourth proportional to 351,058.48, 526,602.71 and 137,872.59 is: 206,814.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,058.48 : 526,602.71 = 137,872.59 : x
  2. Step 2: Convert to fraction form
    351,058.48/526,602.71 = 137,872.59/x
  3. Step 3: Cross multiply
    351,058.48x = 526,602.71 × 137,872.59
  4. Step 4: Simplify right side
    351,058.48x = 72,604,080,631.90
  5. Step 5: Solve for x
    x = 72,604,080,631.90/351,058.48
  6. Step 6: Final answer
    x = 206,814.78

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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.