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Finding the Fourth Proportional to 93,884.49, 129,560.66 and 55,662.90

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Solution

The fourth proportional to 93,884.49, 129,560.66 and 55,662.90 is: 76,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,884.49 : 129,560.66 = 55,662.90 : x
  2. Step 2: Convert to fraction form
    93,884.49/129,560.66 = 55,662.90/x
  3. Step 3: Cross multiply
    93,884.49x = 129,560.66 × 55,662.90
  4. Step 4: Simplify right side
    93,884.49x = 7,211,721,819.19
  5. Step 5: Solve for x
    x = 7,211,721,819.19/93,884.49
  6. Step 6: Final answer
    x = 76,814.83

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1.5x scale

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.