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Finding the Fourth Proportional to 70,694.42, 97,525.80 and 62,636.30

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Solution

The fourth proportional to 70,694.42, 97,525.80 and 62,636.30 is: 86,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,694.42 : 97,525.80 = 62,636.30 : x
  2. Step 2: Convert to fraction form
    70,694.42/97,525.80 = 62,636.30/x
  3. Step 3: Cross multiply
    70,694.42x = 97,525.80 × 62,636.30
  4. Step 4: Simplify right side
    70,694.42x = 6,108,655,266.54
  5. Step 5: Solve for x
    x = 6,108,655,266.54/70,694.42
  6. Step 6: Final answer
    x = 86,409.30

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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.