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Finding the Fourth Proportional to 266,907.28, 400,518.84 and 98,545

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Solution

The fourth proportional to 266,907.28, 400,518.84 and 98,545 is: 147,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,907.28 : 400,518.84 = 98,545 : x
  2. Step 2: Convert to fraction form
    266,907.28/400,518.84 = 98,545/x
  3. Step 3: Cross multiply
    266,907.28x = 400,518.84 × 98,545
  4. Step 4: Simplify right side
    266,907.28x = 39,469,129,087.80
  5. Step 5: Solve for x
    x = 39,469,129,087.80/266,907.28
  6. Step 6: Final answer
    x = 147,875.81

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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.