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Finding the Fourth Proportional to 68,290.92, 94,242.64 and 37,667.53

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Solution

The fourth proportional to 68,290.92, 94,242.64 and 37,667.53 is: 51,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,290.92 : 94,242.64 = 37,667.53 : x
  2. Step 2: Convert to fraction form
    68,290.92/94,242.64 = 37,667.53/x
  3. Step 3: Cross multiply
    68,290.92x = 94,242.64 × 37,667.53
  4. Step 4: Simplify right side
    68,290.92x = 3,549,887,981.11
  5. Step 5: Solve for x
    x = 3,549,887,981.11/68,290.92
  6. Step 6: Final answer
    x = 51,981.84

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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.