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Finding the Fourth Proportional to 123,326.80, 184,995.39 and 39,085.11

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Solution

The fourth proportional to 123,326.80, 184,995.39 and 39,085.11 is: 58,629.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,326.80 : 184,995.39 = 39,085.11 : x
  2. Step 2: Convert to fraction form
    123,326.80/184,995.39 = 39,085.11/x
  3. Step 3: Cross multiply
    123,326.80x = 184,995.39 × 39,085.11
  4. Step 4: Simplify right side
    123,326.80x = 7,230,565,314.21
  5. Step 5: Solve for x
    x = 7,230,565,314.21/123,326.80
  6. Step 6: Final answer
    x = 58,629.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.