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Finding the Fourth Proportional to 276,797.67, 382,075.11 and 172,103.55

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Solution

The fourth proportional to 276,797.67, 382,075.11 and 172,103.55 is: 237,561.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,797.67 : 382,075.11 = 172,103.55 : x
  2. Step 2: Convert to fraction form
    276,797.67/382,075.11 = 172,103.55/x
  3. Step 3: Cross multiply
    276,797.67x = 382,075.11 × 172,103.55
  4. Step 4: Simplify right side
    276,797.67x = 65,756,482,797.64
  5. Step 5: Solve for x
    x = 65,756,482,797.64/276,797.67
  6. Step 6: Final answer
    x = 237,561.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.