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Finding the Fourth Proportional to 238,620.15, 357,922.02 and 61,128.69

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Solution

The fourth proportional to 238,620.15, 357,922.02 and 61,128.69 is: 91,690.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,620.15 : 357,922.02 = 61,128.69 : x
  2. Step 2: Convert to fraction form
    238,620.15/357,922.02 = 61,128.69/x
  3. Step 3: Cross multiply
    238,620.15x = 357,922.02 × 61,128.69
  4. Step 4: Simplify right side
    238,620.15x = 21,879,304,204.75
  5. Step 5: Solve for x
    x = 21,879,304,204.75/238,620.15
  6. Step 6: Final answer
    x = 91,690.93

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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.