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Finding the Fourth Proportional to 242,799.32, 335,087.54 and 140,855.96

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Solution

The fourth proportional to 242,799.32, 335,087.54 and 140,855.96 is: 194,395.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,799.32 : 335,087.54 = 140,855.96 : x
  2. Step 2: Convert to fraction form
    242,799.32/335,087.54 = 140,855.96/x
  3. Step 3: Cross multiply
    242,799.32x = 335,087.54 × 140,855.96
  4. Step 4: Simplify right side
    242,799.32x = 47,199,074,751.02
  5. Step 5: Solve for x
    x = 47,199,074,751.02/242,799.32
  6. Step 6: Final answer
    x = 194,395.42

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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.