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Finding the Fourth Proportional to 266,107.80, 399,075.30 and 88,584.60

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Solution

The fourth proportional to 266,107.80, 399,075.30 and 88,584.60 is: 132,848.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,107.80 : 399,075.30 = 88,584.60 : x
  2. Step 2: Convert to fraction form
    266,107.80/399,075.30 = 88,584.60/x
  3. Step 3: Cross multiply
    266,107.80x = 399,075.30 × 88,584.60
  4. Step 4: Simplify right side
    266,107.80x = 35,351,925,820.38
  5. Step 5: Solve for x
    x = 35,351,925,820.38/266,107.80
  6. Step 6: Final answer
    x = 132,848.14

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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.