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Finding the Fourth Proportional to 242,642.79, 334,842.46 and 132,262.40

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Solution

The fourth proportional to 242,642.79, 334,842.46 and 132,262.40 is: 182,519.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,642.79 : 334,842.46 = 132,262.40 : x
  2. Step 2: Convert to fraction form
    242,642.79/334,842.46 = 132,262.40/x
  3. Step 3: Cross multiply
    242,642.79x = 334,842.46 × 132,262.40
  4. Step 4: Simplify right side
    242,642.79x = 44,287,067,887.95
  5. Step 5: Solve for x
    x = 44,287,067,887.95/242,642.79
  6. Step 6: Final answer
    x = 182,519.61

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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.