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Finding the Fourth Proportional to 93,076.90, 128,447.07 and 52,789.62

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Solution

The fourth proportional to 93,076.90, 128,447.07 and 52,789.62 is: 72,850.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,076.90 : 128,447.07 = 52,789.62 : x
  2. Step 2: Convert to fraction form
    93,076.90/128,447.07 = 52,789.62/x
  3. Step 3: Cross multiply
    93,076.90x = 128,447.07 × 52,789.62
  4. Step 4: Simplify right side
    93,076.90x = 6,780,672,299.13
  5. Step 5: Solve for x
    x = 6,780,672,299.13/93,076.90
  6. Step 6: Final answer
    x = 72,850.22

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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.