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Finding the Fourth Proportional to 68,195.64, 94,109.72 and 37,981.32

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Solution

The fourth proportional to 68,195.64, 94,109.72 and 37,981.32 is: 52,414.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,195.64 : 94,109.72 = 37,981.32 : x
  2. Step 2: Convert to fraction form
    68,195.64/94,109.72 = 37,981.32/x
  3. Step 3: Cross multiply
    68,195.64x = 94,109.72 × 37,981.32
  4. Step 4: Simplify right side
    68,195.64x = 3,574,411,390.43
  5. Step 5: Solve for x
    x = 3,574,411,390.43/68,195.64
  6. Step 6: Final answer
    x = 52,414.08

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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.