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Finding the Fourth Proportional to 235,063.92, 352,521 and 77,255.94

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Solution

The fourth proportional to 235,063.92, 352,521 and 77,255.94 is: 115,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,063.92 : 352,521 = 77,255.94 : x
  2. Step 2: Convert to fraction form
    235,063.92/352,521 = 77,255.94/x
  3. Step 3: Cross multiply
    235,063.92x = 352,521 × 77,255.94
  4. Step 4: Simplify right side
    235,063.92x = 27,234,341,224.74
  5. Step 5: Solve for x
    x = 27,234,341,224.74/235,063.92
  6. Step 6: Final answer
    x = 115,859.30

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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.