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Finding the Fourth Proportional to 71,094.81, 98,110.90 and 38,829.88

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Solution

The fourth proportional to 71,094.81, 98,110.90 and 38,829.88 is: 53,585.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,094.81 : 98,110.90 = 38,829.88 : x
  2. Step 2: Convert to fraction form
    71,094.81/98,110.90 = 38,829.88/x
  3. Step 3: Cross multiply
    71,094.81x = 98,110.90 × 38,829.88
  4. Step 4: Simplify right side
    71,094.81x = 3,809,633,788.99
  5. Step 5: Solve for x
    x = 3,809,633,788.99/71,094.81
  6. Step 6: Final answer
    x = 53,585.26

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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.