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Finding the Fourth Proportional to 295,239.60, 442,859.40 and 82,007.10

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Solution

The fourth proportional to 295,239.60, 442,859.40 and 82,007.10 is: 123,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,239.60 : 442,859.40 = 82,007.10 : x
  2. Step 2: Convert to fraction form
    295,239.60/442,859.40 = 82,007.10/x
  3. Step 3: Cross multiply
    295,239.60x = 442,859.40 × 82,007.10
  4. Step 4: Simplify right side
    295,239.60x = 36,317,615,101.74
  5. Step 5: Solve for x
    x = 36,317,615,101.74/295,239.60
  6. Step 6: Final answer
    x = 123,010.65

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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.