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Finding the Fourth Proportional to 70,799.90, 97,705.71 and 38,536.65

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Solution

The fourth proportional to 70,799.90, 97,705.71 and 38,536.65 is: 53,181.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,799.90 : 97,705.71 = 38,536.65 : x
  2. Step 2: Convert to fraction form
    70,799.90/97,705.71 = 38,536.65/x
  3. Step 3: Cross multiply
    70,799.90x = 97,705.71 × 38,536.65
  4. Step 4: Simplify right side
    70,799.90x = 3,765,250,749.27
  5. Step 5: Solve for x
    x = 3,765,250,749.27/70,799.90
  6. Step 6: Final answer
    x = 53,181.59

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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.