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Finding the Fourth Proportional to 70,515.84, 97,311.60 and 43,653

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Solution

The fourth proportional to 70,515.84, 97,311.60 and 43,653 is: 60,240.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,515.84 : 97,311.60 = 43,653 : x
  2. Step 2: Convert to fraction form
    70,515.84/97,311.60 = 43,653/x
  3. Step 3: Cross multiply
    70,515.84x = 97,311.60 × 43,653
  4. Step 4: Simplify right side
    70,515.84x = 4,247,943,274.80
  5. Step 5: Solve for x
    x = 4,247,943,274.80/70,515.84
  6. Step 6: Final answer
    x = 60,240.98

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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.