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Finding the Fourth Proportional to 295,851.50, 408,275.07 and 161,715.50

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Solution

The fourth proportional to 295,851.50, 408,275.07 and 161,715.50 is: 223,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,851.50 : 408,275.07 = 161,715.50 : x
  2. Step 2: Convert to fraction form
    295,851.50/408,275.07 = 161,715.50/x
  3. Step 3: Cross multiply
    295,851.50x = 408,275.07 × 161,715.50
  4. Step 4: Simplify right side
    295,851.50x = 66,024,407,082.59
  5. Step 5: Solve for x
    x = 66,024,407,082.59/295,851.50
  6. Step 6: Final answer
    x = 223,167.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.