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Finding the Fourth Proportional to 93,249.81, 128,685.02 and 52,963.90

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Solution

The fourth proportional to 93,249.81, 128,685.02 and 52,963.90 is: 73,090.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,249.81 : 128,685.02 = 52,963.90 : x
  2. Step 2: Convert to fraction form
    93,249.81/128,685.02 = 52,963.90/x
  3. Step 3: Cross multiply
    93,249.81x = 128,685.02 × 52,963.90
  4. Step 4: Simplify right side
    93,249.81x = 6,815,660,530.78
  5. Step 5: Solve for x
    x = 6,815,660,530.78/93,249.81
  6. Step 6: Final answer
    x = 73,090.34

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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.