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Finding the Fourth Proportional to 81,473.58, 112,392.36 and 60,215.94

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Solution

The fourth proportional to 81,473.58, 112,392.36 and 60,215.94 is: 83,067.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,473.58 : 112,392.36 = 60,215.94 : x
  2. Step 2: Convert to fraction form
    81,473.58/112,392.36 = 60,215.94/x
  3. Step 3: Cross multiply
    81,473.58x = 112,392.36 × 60,215.94
  4. Step 4: Simplify right side
    81,473.58x = 6,767,811,606.22
  5. Step 5: Solve for x
    x = 6,767,811,606.22/81,473.58
  6. Step 6: Final answer
    x = 83,067.56

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1.5x scale

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.