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Finding the Fourth Proportional to 108,649.50, 149,944.95 and 63,946.14

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Solution

The fourth proportional to 108,649.50, 149,944.95 and 63,946.14 is: 88,250.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,649.50 : 149,944.95 = 63,946.14 : x
  2. Step 2: Convert to fraction form
    108,649.50/149,944.95 = 63,946.14/x
  3. Step 3: Cross multiply
    108,649.50x = 149,944.95 × 63,946.14
  4. Step 4: Simplify right side
    108,649.50x = 9,588,400,764.99
  5. Step 5: Solve for x
    x = 9,588,400,764.99/108,649.50
  6. Step 6: Final answer
    x = 88,250.76

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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.