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Finding the Fourth Proportional to 93,022.44, 128,223.57 and 85,299.76

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Solution

The fourth proportional to 93,022.44, 128,223.57 and 85,299.76 is: 117,578.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,022.44 : 128,223.57 = 85,299.76 : x
  2. Step 2: Convert to fraction form
    93,022.44/128,223.57 = 85,299.76/x
  3. Step 3: Cross multiply
    93,022.44x = 128,223.57 × 85,299.76
  4. Step 4: Simplify right side
    93,022.44x = 10,937,439,747.34
  5. Step 5: Solve for x
    x = 10,937,439,747.34/93,022.44
  6. Step 6: Final answer
    x = 117,578.51

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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.