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Finding the Fourth Proportional to 68,146.75, 94,042.49 and 37,931.42

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Solution

The fourth proportional to 68,146.75, 94,042.49 and 37,931.42 is: 52,345.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,146.75 : 94,042.49 = 37,931.42 : x
  2. Step 2: Convert to fraction form
    68,146.75/94,042.49 = 37,931.42/x
  3. Step 3: Cross multiply
    68,146.75x = 94,042.49 × 37,931.42
  4. Step 4: Simplify right side
    68,146.75x = 3,567,164,715.82
  5. Step 5: Solve for x
    x = 3,567,164,715.82/68,146.75
  6. Step 6: Final answer
    x = 52,345.34

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1.5x scale

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.