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Finding the Fourth Proportional to 70,427.88, 105,619.51 and 23,032.02

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Solution

The fourth proportional to 70,427.88, 105,619.51 and 23,032.02 is: 34,540.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,427.88 : 105,619.51 = 23,032.02 : x
  2. Step 2: Convert to fraction form
    70,427.88/105,619.51 = 23,032.02/x
  3. Step 3: Cross multiply
    70,427.88x = 105,619.51 × 23,032.02
  4. Step 4: Simplify right side
    70,427.88x = 2,432,630,081.03
  5. Step 5: Solve for x
    x = 2,432,630,081.03/70,427.88
  6. Step 6: Final answer
    x = 34,540.73

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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.