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Finding the Fourth Proportional to 68,016.84, 93,874.38 and 56,668.34

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Solution

The fourth proportional to 68,016.84, 93,874.38 and 56,668.34 is: 78,211.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,016.84 : 93,874.38 = 56,668.34 : x
  2. Step 2: Convert to fraction form
    68,016.84/93,874.38 = 56,668.34/x
  3. Step 3: Cross multiply
    68,016.84x = 93,874.38 × 56,668.34
  4. Step 4: Simplify right side
    68,016.84x = 5,319,705,283.13
  5. Step 5: Solve for x
    x = 5,319,705,283.13/68,016.84
  6. Step 6: Final answer
    x = 78,211.59

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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.