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Finding the Fourth Proportional to 68,595.70, 94,673.01 and 40,308.34

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Solution

The fourth proportional to 68,595.70, 94,673.01 and 40,308.34 is: 55,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,595.70 : 94,673.01 = 40,308.34 : x
  2. Step 2: Convert to fraction form
    68,595.70/94,673.01 = 40,308.34/x
  3. Step 3: Cross multiply
    68,595.70x = 94,673.01 × 40,308.34
  4. Step 4: Simplify right side
    68,595.70x = 3,816,111,875.90
  5. Step 5: Solve for x
    x = 3,816,111,875.90/68,595.70
  6. Step 6: Final answer
    x = 55,631.94

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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.