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Finding the Fourth Proportional to 70,864.44, 97,788.78 and 40,654.68

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Solution

The fourth proportional to 70,864.44, 97,788.78 and 40,654.68 is: 56,101.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,864.44 : 97,788.78 = 40,654.68 : x
  2. Step 2: Convert to fraction form
    70,864.44/97,788.78 = 40,654.68/x
  3. Step 3: Cross multiply
    70,864.44x = 97,788.78 × 40,654.68
  4. Step 4: Simplify right side
    70,864.44x = 3,975,571,558.49
  5. Step 5: Solve for x
    x = 3,975,571,558.49/70,864.44
  6. Step 6: Final answer
    x = 56,101.08

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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.