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Finding the Fourth Proportional to 70,415.61, 105,623.31 and 23,701.29

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Solution

The fourth proportional to 70,415.61, 105,623.31 and 23,701.29 is: 35,551.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,415.61 : 105,623.31 = 23,701.29 : x
  2. Step 2: Convert to fraction form
    70,415.61/105,623.31 = 23,701.29/x
  3. Step 3: Cross multiply
    70,415.61x = 105,623.31 × 23,701.29
  4. Step 4: Simplify right side
    70,415.61x = 2,503,408,701.07
  5. Step 5: Solve for x
    x = 2,503,408,701.07/70,415.61
  6. Step 6: Final answer
    x = 35,551.90

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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.