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Finding the Fourth Proportional to 250,909.20, 376,072.20 and 101,075.40

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Solution

The fourth proportional to 250,909.20, 376,072.20 and 101,075.40 is: 151,495.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,909.20 : 376,072.20 = 101,075.40 : x
  2. Step 2: Convert to fraction form
    250,909.20/376,072.20 = 101,075.40/x
  3. Step 3: Cross multiply
    250,909.20x = 376,072.20 × 101,075.40
  4. Step 4: Simplify right side
    250,909.20x = 38,011,648,043.88
  5. Step 5: Solve for x
    x = 38,011,648,043.88/250,909.20
  6. Step 6: Final answer
    x = 151,495.63

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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.