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Finding the Fourth Proportional to 110,810.02, 166,963 and 91,520.68

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Solution

The fourth proportional to 110,810.02, 166,963 and 91,520.68 is: 137,898.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,810.02 : 166,963 = 91,520.68 : x
  2. Step 2: Convert to fraction form
    110,810.02/166,963 = 91,520.68/x
  3. Step 3: Cross multiply
    110,810.02x = 166,963 × 91,520.68
  4. Step 4: Simplify right side
    110,810.02x = 15,280,567,294.84
  5. Step 5: Solve for x
    x = 15,280,567,294.84/110,810.02
  6. Step 6: Final answer
    x = 137,898.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.