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Finding the Fourth Proportional to 93,666, 129,274.34 and 69,626.62

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Solution

The fourth proportional to 93,666, 129,274.34 and 69,626.62 is: 96,096.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,666 : 129,274.34 = 69,626.62 : x
  2. Step 2: Convert to fraction form
    93,666/129,274.34 = 69,626.62/x
  3. Step 3: Cross multiply
    93,666x = 129,274.34 × 69,626.62
  4. Step 4: Simplify right side
    93,666x = 9,000,935,346.93
  5. Step 5: Solve for x
    x = 9,000,935,346.93/93,666
  6. Step 6: Final answer
    x = 96,096.08

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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.