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Finding the Fourth Proportional to 81,853.50, 112,949.76 and 46,042.74

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Solution

The fourth proportional to 81,853.50, 112,949.76 and 46,042.74 is: 63,534.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,853.50 : 112,949.76 = 46,042.74 : x
  2. Step 2: Convert to fraction form
    81,853.50/112,949.76 = 46,042.74/x
  3. Step 3: Cross multiply
    81,853.50x = 112,949.76 × 46,042.74
  4. Step 4: Simplify right side
    81,853.50x = 5,200,516,432.74
  5. Step 5: Solve for x
    x = 5,200,516,432.74/81,853.50
  6. Step 6: Final answer
    x = 63,534.44

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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.