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Finding the Fourth Proportional to 68,179.34, 94,133.68 and 42,695.93

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Solution

The fourth proportional to 68,179.34, 94,133.68 and 42,695.93 is: 58,949.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,179.34 : 94,133.68 = 42,695.93 : x
  2. Step 2: Convert to fraction form
    68,179.34/94,133.68 = 42,695.93/x
  3. Step 3: Cross multiply
    68,179.34x = 94,133.68 × 42,695.93
  4. Step 4: Simplify right side
    68,179.34x = 4,019,125,140.52
  5. Step 5: Solve for x
    x = 4,019,125,140.52/68,179.34
  6. Step 6: Final answer
    x = 58,949.31

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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.