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Finding the Fourth Proportional to 70,604.66, 97,431.50 and 38,338.02

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Solution

The fourth proportional to 70,604.66, 97,431.50 and 38,338.02 is: 52,904.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,604.66 : 97,431.50 = 38,338.02 : x
  2. Step 2: Convert to fraction form
    70,604.66/97,431.50 = 38,338.02/x
  3. Step 3: Cross multiply
    70,604.66x = 97,431.50 × 38,338.02
  4. Step 4: Simplify right side
    70,604.66x = 3,735,330,795.63
  5. Step 5: Solve for x
    x = 3,735,330,795.63/70,604.66
  6. Step 6: Final answer
    x = 52,904.88

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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.