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Finding the Fourth Proportional to 238,129.80, 357,194.71 and 111,857.22

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Solution

The fourth proportional to 238,129.80, 357,194.71 and 111,857.22 is: 167,785.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,129.80 : 357,194.71 = 111,857.22 : x
  2. Step 2: Convert to fraction form
    238,129.80/357,194.71 = 111,857.22/x
  3. Step 3: Cross multiply
    238,129.80x = 357,194.71 × 111,857.22
  4. Step 4: Simplify right side
    238,129.80x = 39,954,807,259.31
  5. Step 5: Solve for x
    x = 39,954,807,259.31/238,129.80
  6. Step 6: Final answer
    x = 167,785.83

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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.