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Finding the Fourth Proportional to 78,608.44, 108,491.28 and 46,348.97

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Solution

The fourth proportional to 78,608.44, 108,491.28 and 46,348.97 is: 63,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,608.44 : 108,491.28 = 46,348.97 : x
  2. Step 2: Convert to fraction form
    78,608.44/108,491.28 = 46,348.97/x
  3. Step 3: Cross multiply
    78,608.44x = 108,491.28 × 46,348.97
  4. Step 4: Simplify right side
    78,608.44x = 5,028,459,081.98
  5. Step 5: Solve for x
    x = 5,028,459,081.98/78,608.44
  6. Step 6: Final answer
    x = 63,968.44

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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.