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Finding the Fourth Proportional to 251,368.35, 377,232.45 and 91,443.97

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Solution

The fourth proportional to 251,368.35, 377,232.45 and 91,443.97 is: 137,231.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,368.35 : 377,232.45 = 91,443.97 : x
  2. Step 2: Convert to fraction form
    251,368.35/377,232.45 = 91,443.97/x
  3. Step 3: Cross multiply
    251,368.35x = 377,232.45 × 91,443.97
  4. Step 4: Simplify right side
    251,368.35x = 34,495,632,840.83
  5. Step 5: Solve for x
    x = 34,495,632,840.83/251,368.35
  6. Step 6: Final answer
    x = 137,231.41

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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.