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Finding the Fourth Proportional to 276,798.17, 382,075.80 and 172,104.05

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Solution

The fourth proportional to 276,798.17, 382,075.80 and 172,104.05 is: 237,562.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,798.17 : 382,075.80 = 172,104.05 : x
  2. Step 2: Convert to fraction form
    276,798.17/382,075.80 = 172,104.05/x
  3. Step 3: Cross multiply
    276,798.17x = 382,075.80 × 172,104.05
  4. Step 4: Simplify right side
    276,798.17x = 65,756,792,586.99
  5. Step 5: Solve for x
    x = 65,756,792,586.99/276,798.17
  6. Step 6: Final answer
    x = 237,562.24

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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.