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Finding the Fourth Proportional to 93,231.78, 128,660.74 and 52,946.38

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Solution

The fourth proportional to 93,231.78, 128,660.74 and 52,946.38 is: 73,066.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,231.78 : 128,660.74 = 52,946.38 : x
  2. Step 2: Convert to fraction form
    93,231.78/128,660.74 = 52,946.38/x
  3. Step 3: Cross multiply
    93,231.78x = 128,660.74 × 52,946.38
  4. Step 4: Simplify right side
    93,231.78x = 6,812,120,431.12
  5. Step 5: Solve for x
    x = 6,812,120,431.12/93,231.78
  6. Step 6: Final answer
    x = 73,066.51

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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.