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Finding the Fourth Proportional to 68,373.52, 102,547.26 and 28,958.32

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Solution

The fourth proportional to 68,373.52, 102,547.26 and 28,958.32 is: 43,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,373.52 : 102,547.26 = 28,958.32 : x
  2. Step 2: Convert to fraction form
    68,373.52/102,547.26 = 28,958.32/x
  3. Step 3: Cross multiply
    68,373.52x = 102,547.26 × 28,958.32
  4. Step 4: Simplify right side
    68,373.52x = 2,969,596,370.20
  5. Step 5: Solve for x
    x = 2,969,596,370.20/68,373.52
  6. Step 6: Final answer
    x = 43,431.97

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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.