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Finding the Fourth Proportional to 68,973.90, 95,176.89 and 38,754.42

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Solution

The fourth proportional to 68,973.90, 95,176.89 and 38,754.42 is: 53,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,973.90 : 95,176.89 = 38,754.42 : x
  2. Step 2: Convert to fraction form
    68,973.90/95,176.89 = 38,754.42/x
  3. Step 3: Cross multiply
    68,973.90x = 95,176.89 × 38,754.42
  4. Step 4: Simplify right side
    68,973.90x = 3,688,525,169.35
  5. Step 5: Solve for x
    x = 3,688,525,169.35/68,973.90
  6. Step 6: Final answer
    x = 53,477.11

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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.