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Finding the Fourth Proportional to 435,609.27, 653,390.40 and 136,055.46

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Solution

The fourth proportional to 435,609.27, 653,390.40 and 136,055.46 is: 204,075.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,609.27 : 653,390.40 = 136,055.46 : x
  2. Step 2: Convert to fraction form
    435,609.27/653,390.40 = 136,055.46/x
  3. Step 3: Cross multiply
    435,609.27x = 653,390.40 × 136,055.46
  4. Step 4: Simplify right side
    435,609.27x = 88,897,331,431.58
  5. Step 5: Solve for x
    x = 88,897,331,431.58/435,609.27
  6. Step 6: Final answer
    x = 204,075.85

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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.