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Finding the Fourth Proportional to 173,468.46, 259,732.88 and 90,187.50

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Solution

The fourth proportional to 173,468.46, 259,732.88 and 90,187.50 is: 135,036.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,468.46 : 259,732.88 = 90,187.50 : x
  2. Step 2: Convert to fraction form
    173,468.46/259,732.88 = 90,187.50/x
  3. Step 3: Cross multiply
    173,468.46x = 259,732.88 × 90,187.50
  4. Step 4: Simplify right side
    173,468.46x = 23,424,659,115
  5. Step 5: Solve for x
    x = 23,424,659,115/173,468.46
  6. Step 6: Final answer
    x = 135,036.99

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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.