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Finding the Fourth Proportional to 81,854.80, 112,958.49 and 46,044.79

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Solution

The fourth proportional to 81,854.80, 112,958.49 and 46,044.79 is: 63,541.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,854.80 : 112,958.49 = 46,044.79 : x
  2. Step 2: Convert to fraction form
    81,854.80/112,958.49 = 46,044.79/x
  3. Step 3: Cross multiply
    81,854.80x = 112,958.49 × 46,044.79
  4. Step 4: Simplify right side
    81,854.80x = 5,201,149,950.77
  5. Step 5: Solve for x
    x = 5,201,149,950.77/81,854.80
  6. Step 6: Final answer
    x = 63,541.17

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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.