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Finding the Fourth Proportional to 93,422.70, 140,134.05 and 84,966.30

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Solution

The fourth proportional to 93,422.70, 140,134.05 and 84,966.30 is: 127,449.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,422.70 : 140,134.05 = 84,966.30 : x
  2. Step 2: Convert to fraction form
    93,422.70/140,134.05 = 84,966.30/x
  3. Step 3: Cross multiply
    93,422.70x = 140,134.05 × 84,966.30
  4. Step 4: Simplify right side
    93,422.70x = 11,906,671,732.52
  5. Step 5: Solve for x
    x = 11,906,671,732.52/93,422.70
  6. Step 6: Final answer
    x = 127,449.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.