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Finding the Fourth Proportional to 123,607.11, 170,581.16 and 69,900.13

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Solution

The fourth proportional to 123,607.11, 170,581.16 and 69,900.13 is: 96,464.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,607.11 : 170,581.16 = 69,900.13 : x
  2. Step 2: Convert to fraction form
    123,607.11/170,581.16 = 69,900.13/x
  3. Step 3: Cross multiply
    123,607.11x = 170,581.16 × 69,900.13
  4. Step 4: Simplify right side
    123,607.11x = 11,923,644,057.14
  5. Step 5: Solve for x
    x = 11,923,644,057.14/123,607.11
  6. Step 6: Final answer
    x = 96,464.06

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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.