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Finding the Fourth Proportional to 242,785.53, 335,061.77 and 140,845.82

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Solution

The fourth proportional to 242,785.53, 335,061.77 and 140,845.82 is: 194,377.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,785.53 : 335,061.77 = 140,845.82 : x
  2. Step 2: Convert to fraction form
    242,785.53/335,061.77 = 140,845.82/x
  3. Step 3: Cross multiply
    242,785.53x = 335,061.77 × 140,845.82
  4. Step 4: Simplify right side
    242,785.53x = 47,192,047,366.76
  5. Step 5: Solve for x
    x = 47,192,047,366.76/242,785.53
  6. Step 6: Final answer
    x = 194,377.51

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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.