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Finding the Fourth Proportional to 70,538.68, 97,222.17 and 67,216.87

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Solution

The fourth proportional to 70,538.68, 97,222.17 and 67,216.87 is: 92,643.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,538.68 : 97,222.17 = 67,216.87 : x
  2. Step 2: Convert to fraction form
    70,538.68/97,222.17 = 67,216.87/x
  3. Step 3: Cross multiply
    70,538.68x = 97,222.17 × 67,216.87
  4. Step 4: Simplify right side
    70,538.68x = 6,534,969,962.01
  5. Step 5: Solve for x
    x = 6,534,969,962.01/70,538.68
  6. Step 6: Final answer
    x = 92,643.78

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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.