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Finding the Fourth Proportional to 109,866.72, 151,615.44 and 59,564.64

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Solution

The fourth proportional to 109,866.72, 151,615.44 and 59,564.64 is: 82,198.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,866.72 : 151,615.44 = 59,564.64 : x
  2. Step 2: Convert to fraction form
    109,866.72/151,615.44 = 59,564.64/x
  3. Step 3: Cross multiply
    109,866.72x = 151,615.44 × 59,564.64
  4. Step 4: Simplify right side
    109,866.72x = 9,030,919,102.04
  5. Step 5: Solve for x
    x = 9,030,919,102.04/109,866.72
  6. Step 6: Final answer
    x = 82,198.86

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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.