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Finding the Fourth Proportional to 68,467.59, 94,468.01 and 40,167.81

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Solution

The fourth proportional to 68,467.59, 94,468.01 and 40,167.81 is: 55,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,467.59 : 94,468.01 = 40,167.81 : x
  2. Step 2: Convert to fraction form
    68,467.59/94,468.01 = 40,167.81/x
  3. Step 3: Cross multiply
    68,467.59x = 94,468.01 × 40,167.81
  4. Step 4: Simplify right side
    68,467.59x = 3,794,572,875.92
  5. Step 5: Solve for x
    x = 3,794,572,875.92/68,467.59
  6. Step 6: Final answer
    x = 55,421.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.