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Finding the Fourth Proportional to 81,856.80, 112,968.95 and 46,044.68

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Solution

The fourth proportional to 81,856.80, 112,968.95 and 46,044.68 is: 63,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,856.80 : 112,968.95 = 46,044.68 : x
  2. Step 2: Convert to fraction form
    81,856.80/112,968.95 = 46,044.68/x
  3. Step 3: Cross multiply
    81,856.80x = 112,968.95 × 46,044.68
  4. Step 4: Simplify right side
    81,856.80x = 5,201,618,357.62
  5. Step 5: Solve for x
    x = 5,201,618,357.62/81,856.80
  6. Step 6: Final answer
    x = 63,545.34

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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.