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Finding the Fourth Proportional to 435,659.91, 653,530.19 and 169,440.63

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Solution

The fourth proportional to 435,659.91, 653,530.19 and 169,440.63 is: 254,176.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,659.91 : 653,530.19 = 169,440.63 : x
  2. Step 2: Convert to fraction form
    435,659.91/653,530.19 = 169,440.63/x
  3. Step 3: Cross multiply
    435,659.91x = 653,530.19 × 169,440.63
  4. Step 4: Simplify right side
    435,659.91x = 110,734,566,270.42
  5. Step 5: Solve for x
    x = 110,734,566,270.42/435,659.91
  6. Step 6: Final answer
    x = 254,176.63

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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.