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Finding the Fourth Proportional to 66,940.08, 100,251.81 and 58,127.10

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Solution

The fourth proportional to 66,940.08, 100,251.81 and 58,127.10 is: 87,053.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,940.08 : 100,251.81 = 58,127.10 : x
  2. Step 2: Convert to fraction form
    66,940.08/100,251.81 = 58,127.10/x
  3. Step 3: Cross multiply
    66,940.08x = 100,251.81 × 58,127.10
  4. Step 4: Simplify right side
    66,940.08x = 5,827,346,985.05
  5. Step 5: Solve for x
    x = 5,827,346,985.05/66,940.08
  6. Step 6: Final answer
    x = 87,053.18

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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.