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Finding the Fourth Proportional to 306,672.53, 423,222.04 and 170,715.10

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Solution

The fourth proportional to 306,672.53, 423,222.04 and 170,715.10 is: 235,594.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,672.53 : 423,222.04 = 170,715.10 : x
  2. Step 2: Convert to fraction form
    306,672.53/423,222.04 = 170,715.10/x
  3. Step 3: Cross multiply
    306,672.53x = 423,222.04 × 170,715.10
  4. Step 4: Simplify right side
    306,672.53x = 72,250,392,249.54
  5. Step 5: Solve for x
    x = 72,250,392,249.54/306,672.53
  6. Step 6: Final answer
    x = 235,594.60

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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.