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Finding the Fourth Proportional to 123,109.04, 169,897.83 and 69,396.32

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Solution

The fourth proportional to 123,109.04, 169,897.83 and 69,396.32 is: 95,771.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,109.04 : 169,897.83 = 69,396.32 : x
  2. Step 2: Convert to fraction form
    123,109.04/169,897.83 = 69,396.32/x
  3. Step 3: Cross multiply
    123,109.04x = 169,897.83 × 69,396.32
  4. Step 4: Simplify right side
    123,109.04x = 11,790,284,177.99
  5. Step 5: Solve for x
    x = 11,790,284,177.99/123,109.04
  6. Step 6: Final answer
    x = 95,771.07

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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.