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Finding the Fourth Proportional to 303,442.88, 455,186.18 and 116,454.38

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Solution

The fourth proportional to 303,442.88, 455,186.18 and 116,454.38 is: 174,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,442.88 : 455,186.18 = 116,454.38 : x
  2. Step 2: Convert to fraction form
    303,442.88/455,186.18 = 116,454.38/x
  3. Step 3: Cross multiply
    303,442.88x = 455,186.18 × 116,454.38
  4. Step 4: Simplify right side
    303,442.88x = 53,008,422,391.67
  5. Step 5: Solve for x
    x = 53,008,422,391.67/303,442.88
  6. Step 6: Final answer
    x = 174,689.96

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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.