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Finding the Fourth Proportional to 69,094.72, 103,605.18 and 21,701.12

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Solution

The fourth proportional to 69,094.72, 103,605.18 and 21,701.12 is: 32,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,094.72 : 103,605.18 = 21,701.12 : x
  2. Step 2: Convert to fraction form
    69,094.72/103,605.18 = 21,701.12/x
  3. Step 3: Cross multiply
    69,094.72x = 103,605.18 × 21,701.12
  4. Step 4: Simplify right side
    69,094.72x = 2,248,347,844.40
  5. Step 5: Solve for x
    x = 2,248,347,844.40/69,094.72
  6. Step 6: Final answer
    x = 32,540.08

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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.