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Finding the Fourth Proportional to 108,757.99, 163,117.54 and 69,197.59

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Solution

The fourth proportional to 108,757.99, 163,117.54 and 69,197.59 is: 103,784.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,757.99 : 163,117.54 = 69,197.59 : x
  2. Step 2: Convert to fraction form
    108,757.99/163,117.54 = 69,197.59/x
  3. Step 3: Cross multiply
    108,757.99x = 163,117.54 × 69,197.59
  4. Step 4: Simplify right side
    108,757.99x = 11,287,339,493.15
  5. Step 5: Solve for x
    x = 11,287,339,493.15/108,757.99
  6. Step 6: Final answer
    x = 103,784.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.