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Finding the Fourth Proportional to 238,618.08, 357,918.84 and 61,126.56

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Solution

The fourth proportional to 238,618.08, 357,918.84 and 61,126.56 is: 91,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,618.08 : 357,918.84 = 61,126.56 : x
  2. Step 2: Convert to fraction form
    238,618.08/357,918.84 = 61,126.56/x
  3. Step 3: Cross multiply
    238,618.08x = 357,918.84 × 61,126.56
  4. Step 4: Simplify right side
    238,618.08x = 21,878,347,448.39
  5. Step 5: Solve for x
    x = 21,878,347,448.39/238,618.08
  6. Step 6: Final answer
    x = 91,687.72

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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.