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Finding the Fourth Proportional to 435,447.19, 653,212.10 and 169,228.27

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Solution

The fourth proportional to 435,447.19, 653,212.10 and 169,228.27 is: 253,858.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,447.19 : 653,212.10 = 169,228.27 : x
  2. Step 2: Convert to fraction form
    435,447.19/653,212.10 = 169,228.27/x
  3. Step 3: Cross multiply
    435,447.19x = 653,212.10 × 169,228.27
  4. Step 4: Simplify right side
    435,447.19x = 110,541,953,626.07
  5. Step 5: Solve for x
    x = 110,541,953,626.07/435,447.19
  6. Step 6: Final answer
    x = 253,858.46

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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.