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Finding the Fourth Proportional to 77,269.70, 115,849.20 and 29,844.20

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Solution

The fourth proportional to 77,269.70, 115,849.20 and 29,844.20 is: 44,744.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,269.70 : 115,849.20 = 29,844.20 : x
  2. Step 2: Convert to fraction form
    77,269.70/115,849.20 = 29,844.20/x
  3. Step 3: Cross multiply
    77,269.70x = 115,849.20 × 29,844.20
  4. Step 4: Simplify right side
    77,269.70x = 3,457,426,694.64
  5. Step 5: Solve for x
    x = 3,457,426,694.64/77,269.70
  6. Step 6: Final answer
    x = 44,744.92

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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.