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Finding the Fourth Proportional to 89,759.17, 123,866.98 and 49,473.01

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Solution

The fourth proportional to 89,759.17, 123,866.98 and 49,473.01 is: 68,272.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,759.17 : 123,866.98 = 49,473.01 : x
  2. Step 2: Convert to fraction form
    89,759.17/123,866.98 = 49,473.01/x
  3. Step 3: Cross multiply
    89,759.17x = 123,866.98 × 49,473.01
  4. Step 4: Simplify right side
    89,759.17x = 6,128,072,340.21
  5. Step 5: Solve for x
    x = 6,128,072,340.21/89,759.17
  6. Step 6: Final answer
    x = 68,272.38

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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.