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Finding the Fourth Proportional to 240,269.76, 331,641.50 and 158,657.63

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Solution

The fourth proportional to 240,269.76, 331,641.50 and 158,657.63 is: 218,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,269.76 : 331,641.50 = 158,657.63 : x
  2. Step 2: Convert to fraction form
    240,269.76/331,641.50 = 158,657.63/x
  3. Step 3: Cross multiply
    240,269.76x = 331,641.50 × 158,657.63
  4. Step 4: Simplify right side
    240,269.76x = 52,617,451,948.15
  5. Step 5: Solve for x
    x = 52,617,451,948.15/240,269.76
  6. Step 6: Final answer
    x = 218,993.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.