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Finding the Fourth Proportional to 70,988.34, 97,662.06 and 69,020.04

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Solution

The fourth proportional to 70,988.34, 97,662.06 and 69,020.04 is: 94,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,988.34 : 97,662.06 = 69,020.04 : x
  2. Step 2: Convert to fraction form
    70,988.34/97,662.06 = 69,020.04/x
  3. Step 3: Cross multiply
    70,988.34x = 97,662.06 × 69,020.04
  4. Step 4: Simplify right side
    70,988.34x = 6,740,639,287.68
  5. Step 5: Solve for x
    x = 6,740,639,287.68/70,988.34
  6. Step 6: Final answer
    x = 94,954.18

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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.