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Finding the Fourth Proportional to 67,681.68, 101,546.56 and 30,238.32

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Solution

The fourth proportional to 67,681.68, 101,546.56 and 30,238.32 is: 45,368.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,681.68 : 101,546.56 = 30,238.32 : x
  2. Step 2: Convert to fraction form
    67,681.68/101,546.56 = 30,238.32/x
  3. Step 3: Cross multiply
    67,681.68x = 101,546.56 × 30,238.32
  4. Step 4: Simplify right side
    67,681.68x = 3,070,597,376.18
  5. Step 5: Solve for x
    x = 3,070,597,376.18/67,681.68
  6. Step 6: Final answer
    x = 45,368.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.