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Finding the Fourth Proportional to 435,807.20, 653,692.94 and 120,256.04

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Solution

The fourth proportional to 435,807.20, 653,692.94 and 120,256.04 is: 180,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,807.20 : 653,692.94 = 120,256.04 : x
  2. Step 2: Convert to fraction form
    435,807.20/653,692.94 = 120,256.04/x
  3. Step 3: Cross multiply
    435,807.20x = 653,692.94 × 120,256.04
  4. Step 4: Simplify right side
    435,807.20x = 78,610,524,340.36
  5. Step 5: Solve for x
    x = 78,610,524,340.36/435,807.20
  6. Step 6: Final answer
    x = 180,379.13

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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.