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Finding the Fourth Proportional to 93,649.50, 129,236.85 and 60,115.50

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Solution

The fourth proportional to 93,649.50, 129,236.85 and 60,115.50 is: 82,959.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,649.50 : 129,236.85 = 60,115.50 : x
  2. Step 2: Convert to fraction form
    93,649.50/129,236.85 = 60,115.50/x
  3. Step 3: Cross multiply
    93,649.50x = 129,236.85 × 60,115.50
  4. Step 4: Simplify right side
    93,649.50x = 7,769,137,856.18
  5. Step 5: Solve for x
    x = 7,769,137,856.18/93,649.50
  6. Step 6: Final answer
    x = 82,959.74

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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.