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Finding the Fourth Proportional to 165,000.28, 227,700.24 and 93,379

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Solution

The fourth proportional to 165,000.28, 227,700.24 and 93,379 is: 128,862.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,000.28 : 227,700.24 = 93,379 : x
  2. Step 2: Convert to fraction form
    165,000.28/227,700.24 = 93,379/x
  3. Step 3: Cross multiply
    165,000.28x = 227,700.24 × 93,379
  4. Step 4: Simplify right side
    165,000.28x = 21,262,420,710.96
  5. Step 5: Solve for x
    x = 21,262,420,710.96/165,000.28
  6. Step 6: Final answer
    x = 128,862.94

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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.