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Finding the Fourth Proportional to 68,123.78, 94,009.64 and 37,908.24

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Solution

The fourth proportional to 68,123.78, 94,009.64 and 37,908.24 is: 52,312.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,123.78 : 94,009.64 = 37,908.24 : x
  2. Step 2: Convert to fraction form
    68,123.78/94,009.64 = 37,908.24/x
  3. Step 3: Cross multiply
    68,123.78x = 94,009.64 × 37,908.24
  4. Step 4: Simplify right side
    68,123.78x = 3,563,739,995.43
  5. Step 5: Solve for x
    x = 3,563,739,995.43/68,123.78
  6. Step 6: Final answer
    x = 52,312.72

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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.