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Finding the Fourth Proportional to 70,451.80, 97,230.44 and 40,241.64

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Solution

The fourth proportional to 70,451.80, 97,230.44 and 40,241.64 is: 55,537.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,451.80 : 97,230.44 = 40,241.64 : x
  2. Step 2: Convert to fraction form
    70,451.80/97,230.44 = 40,241.64/x
  3. Step 3: Cross multiply
    70,451.80x = 97,230.44 × 40,241.64
  4. Step 4: Simplify right side
    70,451.80x = 3,912,712,363.52
  5. Step 5: Solve for x
    x = 3,912,712,363.52/70,451.80
  6. Step 6: Final answer
    x = 55,537.44

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1.5x scale

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.