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Finding the Fourth Proportional to 238,611.65, 357,920.30 and 61,113.92

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Solution

The fourth proportional to 238,611.65, 357,920.30 and 61,113.92 is: 91,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,611.65 : 357,920.30 = 61,113.92 : x
  2. Step 2: Convert to fraction form
    238,611.65/357,920.30 = 61,113.92/x
  3. Step 3: Cross multiply
    238,611.65x = 357,920.30 × 61,113.92
  4. Step 4: Simplify right side
    238,611.65x = 21,873,910,943.76
  5. Step 5: Solve for x
    x = 21,873,910,943.76/238,611.65
  6. Step 6: Final answer
    x = 91,671.60

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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.