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Finding the Fourth Proportional to 356,679.38, 534,863.52 and 134,907.86

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Solution

The fourth proportional to 356,679.38, 534,863.52 and 134,907.86 is: 202,302.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,679.38 : 534,863.52 = 134,907.86 : x
  2. Step 2: Convert to fraction form
    356,679.38/534,863.52 = 134,907.86/x
  3. Step 3: Cross multiply
    356,679.38x = 534,863.52 × 134,907.86
  4. Step 4: Simplify right side
    356,679.38x = 72,157,292,875.27
  5. Step 5: Solve for x
    x = 72,157,292,875.27/356,679.38
  6. Step 6: Final answer
    x = 202,302.96

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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.