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Finding the Fourth Proportional to 77,847.53, 107,429.92 and 43,856.42

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Solution

The fourth proportional to 77,847.53, 107,429.92 and 43,856.42 is: 60,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,847.53 : 107,429.92 = 43,856.42 : x
  2. Step 2: Convert to fraction form
    77,847.53/107,429.92 = 43,856.42/x
  3. Step 3: Cross multiply
    77,847.53x = 107,429.92 × 43,856.42
  4. Step 4: Simplify right side
    77,847.53x = 4,711,492,226.16
  5. Step 5: Solve for x
    x = 4,711,492,226.16/77,847.53
  6. Step 6: Final answer
    x = 60,522.05

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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.