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Finding the Fourth Proportional to 178,391.03, 245,977.84 and 113,773.84

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Solution

The fourth proportional to 178,391.03, 245,977.84 and 113,773.84 is: 156,879.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,391.03 : 245,977.84 = 113,773.84 : x
  2. Step 2: Convert to fraction form
    178,391.03/245,977.84 = 113,773.84/x
  3. Step 3: Cross multiply
    178,391.03x = 245,977.84 × 113,773.84
  4. Step 4: Simplify right side
    178,391.03x = 27,985,843,411.71
  5. Step 5: Solve for x
    x = 27,985,843,411.71/178,391.03
  6. Step 6: Final answer
    x = 156,879.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.