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Finding the Fourth Proportional to 84,809.43, 127,214.58 and 49,724.48

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Solution

The fourth proportional to 84,809.43, 127,214.58 and 49,724.48 is: 74,586.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,809.43 : 127,214.58 = 49,724.48 : x
  2. Step 2: Convert to fraction form
    84,809.43/127,214.58 = 49,724.48/x
  3. Step 3: Cross multiply
    84,809.43x = 127,214.58 × 49,724.48
  4. Step 4: Simplify right side
    84,809.43x = 6,325,679,343.42
  5. Step 5: Solve for x
    x = 6,325,679,343.42/84,809.43
  6. Step 6: Final answer
    x = 74,586.98

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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.