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Finding the Fourth Proportional to 92,303.88, 138,744.83 and 60,915.65

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Solution

The fourth proportional to 92,303.88, 138,744.83 and 60,915.65 is: 91,564.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,303.88 : 138,744.83 = 60,915.65 : x
  2. Step 2: Convert to fraction form
    92,303.88/138,744.83 = 60,915.65/x
  3. Step 3: Cross multiply
    92,303.88x = 138,744.83 × 60,915.65
  4. Step 4: Simplify right side
    92,303.88x = 8,451,731,742.59
  5. Step 5: Solve for x
    x = 8,451,731,742.59/92,303.88
  6. Step 6: Final answer
    x = 91,564.21

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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.