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Finding the Fourth Proportional to 82,797.52, 123,595.14 and 76,629.84

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Solution

The fourth proportional to 82,797.52, 123,595.14 and 76,629.84 is: 114,388.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,797.52 : 123,595.14 = 76,629.84 : x
  2. Step 2: Convert to fraction form
    82,797.52/123,595.14 = 76,629.84/x
  3. Step 3: Cross multiply
    82,797.52x = 123,595.14 × 76,629.84
  4. Step 4: Simplify right side
    82,797.52x = 9,471,075,802.98
  5. Step 5: Solve for x
    x = 9,471,075,802.98/82,797.52
  6. Step 6: Final answer
    x = 114,388.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.