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Finding the Fourth Proportional to 435,817.76, 653,760.66 and 169,557.80

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Solution

The fourth proportional to 435,817.76, 653,760.66 and 169,557.80 is: 254,349.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,817.76 : 653,760.66 = 169,557.80 : x
  2. Step 2: Convert to fraction form
    435,817.76/653,760.66 = 169,557.80/x
  3. Step 3: Cross multiply
    435,817.76x = 653,760.66 × 169,557.80
  4. Step 4: Simplify right side
    435,817.76x = 110,850,219,236.15
  5. Step 5: Solve for x
    x = 110,850,219,236.15/435,817.76
  6. Step 6: Final answer
    x = 254,349.94

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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.