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Finding the Fourth Proportional to 108,600.52, 149,868.52 and 66,159.05

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Solution

The fourth proportional to 108,600.52, 149,868.52 and 66,159.05 is: 91,299.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,600.52 : 149,868.52 = 66,159.05 : x
  2. Step 2: Convert to fraction form
    108,600.52/149,868.52 = 66,159.05/x
  3. Step 3: Cross multiply
    108,600.52x = 149,868.52 × 66,159.05
  4. Step 4: Simplify right side
    108,600.52x = 9,915,158,908.11
  5. Step 5: Solve for x
    x = 9,915,158,908.11/108,600.52
  6. Step 6: Final answer
    x = 91,299.37

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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.