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Finding the Fourth Proportional to 86,067.68, 118,740.30 and 63,460.40

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Solution

The fourth proportional to 86,067.68, 118,740.30 and 63,460.40 is: 87,550.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,067.68 : 118,740.30 = 63,460.40 : x
  2. Step 2: Convert to fraction form
    86,067.68/118,740.30 = 63,460.40/x
  3. Step 3: Cross multiply
    86,067.68x = 118,740.30 × 63,460.40
  4. Step 4: Simplify right side
    86,067.68x = 7,535,306,934.12
  5. Step 5: Solve for x
    x = 7,535,306,934.12/86,067.68
  6. Step 6: Final answer
    x = 87,550.95

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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.