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Finding the Fourth Proportional to 68,219.74, 93,461.39 and 65,662.98

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Solution

The fourth proportional to 68,219.74, 93,461.39 and 65,662.98 is: 89,958.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,219.74 : 93,461.39 = 65,662.98 : x
  2. Step 2: Convert to fraction form
    68,219.74/93,461.39 = 65,662.98/x
  3. Step 3: Cross multiply
    68,219.74x = 93,461.39 × 65,662.98
  4. Step 4: Simplify right side
    68,219.74x = 6,136,953,382.34
  5. Step 5: Solve for x
    x = 6,136,953,382.34/68,219.74
  6. Step 6: Final answer
    x = 89,958.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.