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Finding the Fourth Proportional to 70,459.08, 105,689.43 and 17,867.22

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Solution

The fourth proportional to 70,459.08, 105,689.43 and 17,867.22 is: 26,801.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,459.08 : 105,689.43 = 17,867.22 : x
  2. Step 2: Convert to fraction form
    70,459.08/105,689.43 = 17,867.22/x
  3. Step 3: Cross multiply
    70,459.08x = 105,689.43 × 17,867.22
  4. Step 4: Simplify right side
    70,459.08x = 1,888,376,297.48
  5. Step 5: Solve for x
    x = 1,888,376,297.48/70,459.08
  6. Step 6: Final answer
    x = 26,801.04

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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.