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Finding the Fourth Proportional to 70,546.39, 97,354.04 and 38,715.31

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Solution

The fourth proportional to 70,546.39, 97,354.04 and 38,715.31 is: 53,427.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,546.39 : 97,354.04 = 38,715.31 : x
  2. Step 2: Convert to fraction form
    70,546.39/97,354.04 = 38,715.31/x
  3. Step 3: Cross multiply
    70,546.39x = 97,354.04 × 38,715.31
  4. Step 4: Simplify right side
    70,546.39x = 3,769,091,158.01
  5. Step 5: Solve for x
    x = 3,769,091,158.01/70,546.39
  6. Step 6: Final answer
    x = 53,427.13

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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.