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Finding the Fourth Proportional to 177,692.10, 266,440.95 and 72,392.10

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Solution

The fourth proportional to 177,692.10, 266,440.95 and 72,392.10 is: 108,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,692.10 : 266,440.95 = 72,392.10 : x
  2. Step 2: Convert to fraction form
    177,692.10/266,440.95 = 72,392.10/x
  3. Step 3: Cross multiply
    177,692.10x = 266,440.95 × 72,392.10
  4. Step 4: Simplify right side
    177,692.10x = 19,288,219,896.50
  5. Step 5: Solve for x
    x = 19,288,219,896.50/177,692.10
  6. Step 6: Final answer
    x = 108,548.55

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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.