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Finding the Fourth Proportional to 70,380.82, 97,098.51 and 40,167.82

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Solution

The fourth proportional to 70,380.82, 97,098.51 and 40,167.82 is: 55,416.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,380.82 : 97,098.51 = 40,167.82 : x
  2. Step 2: Convert to fraction form
    70,380.82/97,098.51 = 40,167.82/x
  3. Step 3: Cross multiply
    70,380.82x = 97,098.51 × 40,167.82
  4. Step 4: Simplify right side
    70,380.82x = 3,900,235,471.95
  5. Step 5: Solve for x
    x = 3,900,235,471.95/70,380.82
  6. Step 6: Final answer
    x = 55,416.17

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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.