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Finding the Fourth Proportional to 108,761.82, 150,088.95 and 61,014.30

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Solution

The fourth proportional to 108,761.82, 150,088.95 and 61,014.30 is: 84,198.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,761.82 : 150,088.95 = 61,014.30 : x
  2. Step 2: Convert to fraction form
    108,761.82/150,088.95 = 61,014.30/x
  3. Step 3: Cross multiply
    108,761.82x = 150,088.95 × 61,014.30
  4. Step 4: Simplify right side
    108,761.82x = 9,157,572,221.99
  5. Step 5: Solve for x
    x = 9,157,572,221.99/108,761.82
  6. Step 6: Final answer
    x = 84,198.41

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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.