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Finding the Fourth Proportional to 155,993.76, 233,990.64 and 50,812.72

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Solution

The fourth proportional to 155,993.76, 233,990.64 and 50,812.72 is: 76,219.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,993.76 : 233,990.64 = 50,812.72 : x
  2. Step 2: Convert to fraction form
    155,993.76/233,990.64 = 50,812.72/x
  3. Step 3: Cross multiply
    155,993.76x = 233,990.64 × 50,812.72
  4. Step 4: Simplify right side
    155,993.76x = 11,889,700,872.94
  5. Step 5: Solve for x
    x = 11,889,700,872.94/155,993.76
  6. Step 6: Final answer
    x = 76,219.08

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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.