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Finding the Fourth Proportional to 67,054.23, 100,581.21 and 17,134.32

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Solution

The fourth proportional to 67,054.23, 100,581.21 and 17,134.32 is: 25,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,054.23 : 100,581.21 = 17,134.32 : x
  2. Step 2: Convert to fraction form
    67,054.23/100,581.21 = 17,134.32/x
  3. Step 3: Cross multiply
    67,054.23x = 100,581.21 × 17,134.32
  4. Step 4: Simplify right side
    67,054.23x = 1,723,390,638.13
  5. Step 5: Solve for x
    x = 1,723,390,638.13/67,054.23
  6. Step 6: Final answer
    x = 25,701.45

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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.