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Finding the Fourth Proportional to 311,566.33, 467,349.50 and 74,909.01

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Solution

The fourth proportional to 311,566.33, 467,349.50 and 74,909.01 is: 112,363.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,566.33 : 467,349.50 = 74,909.01 : x
  2. Step 2: Convert to fraction form
    311,566.33/467,349.50 = 74,909.01/x
  3. Step 3: Cross multiply
    311,566.33x = 467,349.50 × 74,909.01
  4. Step 4: Simplify right side
    311,566.33x = 35,008,688,369.00
  5. Step 5: Solve for x
    x = 35,008,688,369.00/311,566.33
  6. Step 6: Final answer
    x = 112,363.52

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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.