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Finding the Fourth Proportional to 108,024.90, 149,101.08 and 65,618.97

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Solution

The fourth proportional to 108,024.90, 149,101.08 and 65,618.97 is: 90,570.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,024.90 : 149,101.08 = 65,618.97 : x
  2. Step 2: Convert to fraction form
    108,024.90/149,101.08 = 65,618.97/x
  3. Step 3: Cross multiply
    108,024.90x = 149,101.08 × 65,618.97
  4. Step 4: Simplify right side
    108,024.90x = 9,783,859,295.49
  5. Step 5: Solve for x
    x = 9,783,859,295.49/108,024.90
  6. Step 6: Final answer
    x = 90,570.41

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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.