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Finding the Fourth Proportional to 238,617.15, 357,917.52 and 61,125.69

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Solution

The fourth proportional to 238,617.15, 357,917.52 and 61,125.69 is: 91,686.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,617.15 : 357,917.52 = 61,125.69 : x
  2. Step 2: Convert to fraction form
    238,617.15/357,917.52 = 61,125.69/x
  3. Step 3: Cross multiply
    238,617.15x = 357,917.52 × 61,125.69
  4. Step 4: Simplify right side
    238,617.15x = 21,877,955,373.09
  5. Step 5: Solve for x
    x = 21,877,955,373.09/238,617.15
  6. Step 6: Final answer
    x = 91,686.43

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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.