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Finding the Fourth Proportional to 207,673.01, 311,505.04 and 57,909.31

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Solution

The fourth proportional to 207,673.01, 311,505.04 and 57,909.31 is: 86,862.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,673.01 : 311,505.04 = 57,909.31 : x
  2. Step 2: Convert to fraction form
    207,673.01/311,505.04 = 57,909.31/x
  3. Step 3: Cross multiply
    207,673.01x = 311,505.04 × 57,909.31
  4. Step 4: Simplify right side
    207,673.01x = 18,039,041,221.55
  5. Step 5: Solve for x
    x = 18,039,041,221.55/207,673.01
  6. Step 6: Final answer
    x = 86,862.71

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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.