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Finding the Fourth Proportional to 369,692.35, 554,538.57 and 89,209.60

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Solution

The fourth proportional to 369,692.35, 554,538.57 and 89,209.60 is: 133,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,692.35 : 554,538.57 = 89,209.60 : x
  2. Step 2: Convert to fraction form
    369,692.35/554,538.57 = 89,209.60/x
  3. Step 3: Cross multiply
    369,692.35x = 554,538.57 × 89,209.60
  4. Step 4: Simplify right side
    369,692.35x = 49,470,162,627.93
  5. Step 5: Solve for x
    x = 49,470,162,627.93/369,692.35
  6. Step 6: Final answer
    x = 133,814.41

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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.