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Finding the Fourth Proportional to 70,696.42, 97,528.56 and 62,638.30

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Solution

The fourth proportional to 70,696.42, 97,528.56 and 62,638.30 is: 86,412.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,696.42 : 97,528.56 = 62,638.30 : x
  2. Step 2: Convert to fraction form
    70,696.42/97,528.56 = 62,638.30/x
  3. Step 3: Cross multiply
    70,696.42x = 97,528.56 × 62,638.30
  4. Step 4: Simplify right side
    70,696.42x = 6,109,023,199.85
  5. Step 5: Solve for x
    x = 6,109,023,199.85/70,696.42
  6. Step 6: Final answer
    x = 86,412.06

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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.