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Finding the Fourth Proportional to 93,345.42, 128,819.79 and 50,906.28

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Solution

The fourth proportional to 93,345.42, 128,819.79 and 50,906.28 is: 70,252.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,345.42 : 128,819.79 = 50,906.28 : x
  2. Step 2: Convert to fraction form
    93,345.42/128,819.79 = 50,906.28/x
  3. Step 3: Cross multiply
    93,345.42x = 128,819.79 × 50,906.28
  4. Step 4: Simplify right side
    93,345.42x = 6,557,736,299.28
  5. Step 5: Solve for x
    x = 6,557,736,299.28/93,345.42
  6. Step 6: Final answer
    x = 70,252.36

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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.