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Finding the Fourth Proportional to 93,322.78, 128,785.14 and 50,881.31

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Solution

The fourth proportional to 93,322.78, 128,785.14 and 50,881.31 is: 70,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,322.78 : 128,785.14 = 50,881.31 : x
  2. Step 2: Convert to fraction form
    93,322.78/128,785.14 = 50,881.31/x
  3. Step 3: Cross multiply
    93,322.78x = 128,785.14 × 50,881.31
  4. Step 4: Simplify right side
    93,322.78x = 6,552,757,195.17
  5. Step 5: Solve for x
    x = 6,552,757,195.17/93,322.78
  6. Step 6: Final answer
    x = 70,216.05

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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.