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Finding the Fourth Proportional to 109,560.99, 151,201.08 and 61,796.91

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Solution

The fourth proportional to 109,560.99, 151,201.08 and 61,796.91 is: 85,283.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,560.99 : 151,201.08 = 61,796.91 : x
  2. Step 2: Convert to fraction form
    109,560.99/151,201.08 = 61,796.91/x
  3. Step 3: Cross multiply
    109,560.99x = 151,201.08 × 61,796.91
  4. Step 4: Simplify right side
    109,560.99x = 9,343,759,532.66
  5. Step 5: Solve for x
    x = 9,343,759,532.66/109,560.99
  6. Step 6: Final answer
    x = 85,283.64

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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.