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Finding the Fourth Proportional to 194,632.80, 291,913.20 and 54,362.40

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Solution

The fourth proportional to 194,632.80, 291,913.20 and 54,362.40 is: 81,533.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,632.80 : 291,913.20 = 54,362.40 : x
  2. Step 2: Convert to fraction form
    194,632.80/291,913.20 = 54,362.40/x
  3. Step 3: Cross multiply
    194,632.80x = 291,913.20 × 54,362.40
  4. Step 4: Simplify right side
    194,632.80x = 15,869,102,143.68
  5. Step 5: Solve for x
    x = 15,869,102,143.68/194,632.80
  6. Step 6: Final answer
    x = 81,533.54

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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.