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Finding the Fourth Proportional to 356,734.31, 535,156.74 and 120,058.52

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Solution

The fourth proportional to 356,734.31, 535,156.74 and 120,058.52 is: 180,106.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,734.31 : 535,156.74 = 120,058.52 : x
  2. Step 2: Convert to fraction form
    356,734.31/535,156.74 = 120,058.52/x
  3. Step 3: Cross multiply
    356,734.31x = 535,156.74 × 120,058.52
  4. Step 4: Simplify right side
    356,734.31x = 64,250,123,496.64
  5. Step 5: Solve for x
    x = 64,250,123,496.64/356,734.31
  6. Step 6: Final answer
    x = 180,106.38

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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.