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Finding the Fourth Proportional to 56,700.70, 84,948.65 and 50,147.10

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Solution

The fourth proportional to 56,700.70, 84,948.65 and 50,147.10 is: 75,130.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,700.70 : 84,948.65 = 50,147.10 : x
  2. Step 2: Convert to fraction form
    56,700.70/84,948.65 = 50,147.10/x
  3. Step 3: Cross multiply
    56,700.70x = 84,948.65 × 50,147.10
  4. Step 4: Simplify right side
    56,700.70x = 4,259,928,446.42
  5. Step 5: Solve for x
    x = 4,259,928,446.42/56,700.70
  6. Step 6: Final answer
    x = 75,130.09

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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.