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Finding the Fourth Proportional to 100,599.88, 150,924.40 and 71,075.40

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Solution

The fourth proportional to 100,599.88, 150,924.40 and 71,075.40 is: 106,630.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,599.88 : 150,924.40 = 71,075.40 : x
  2. Step 2: Convert to fraction form
    100,599.88/150,924.40 = 71,075.40/x
  3. Step 3: Cross multiply
    100,599.88x = 150,924.40 × 71,075.40
  4. Step 4: Simplify right side
    100,599.88x = 10,727,012,099.76
  5. Step 5: Solve for x
    x = 10,727,012,099.76/100,599.88
  6. Step 6: Final answer
    x = 106,630.47

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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.