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Finding the Fourth Proportional to 395,340.72, 593,085.60 and 158,701.92

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Solution

The fourth proportional to 395,340.72, 593,085.60 and 158,701.92 is: 238,082.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,340.72 : 593,085.60 = 158,701.92 : x
  2. Step 2: Convert to fraction form
    395,340.72/593,085.60 = 158,701.92/x
  3. Step 3: Cross multiply
    395,340.72x = 593,085.60 × 158,701.92
  4. Step 4: Simplify right side
    395,340.72x = 94,123,823,444.35
  5. Step 5: Solve for x
    x = 94,123,823,444.35/395,340.72
  6. Step 6: Final answer
    x = 238,082.79

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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.