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Finding the Fourth Proportional to 70,353.87, 97,069.10 and 45,217.95

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Solution

The fourth proportional to 70,353.87, 97,069.10 and 45,217.95 is: 62,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,353.87 : 97,069.10 = 45,217.95 : x
  2. Step 2: Convert to fraction form
    70,353.87/97,069.10 = 45,217.95/x
  3. Step 3: Cross multiply
    70,353.87x = 97,069.10 × 45,217.95
  4. Step 4: Simplify right side
    70,353.87x = 4,389,265,484.26
  5. Step 5: Solve for x
    x = 4,389,265,484.26/70,353.87
  6. Step 6: Final answer
    x = 62,388.40

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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.