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Finding the Fourth Proportional to 96,490.80, 144,730.80 and 29,930.40

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Solution

The fourth proportional to 96,490.80, 144,730.80 and 29,930.40 is: 44,893.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,490.80 : 144,730.80 = 29,930.40 : x
  2. Step 2: Convert to fraction form
    96,490.80/144,730.80 = 29,930.40/x
  3. Step 3: Cross multiply
    96,490.80x = 144,730.80 × 29,930.40
  4. Step 4: Simplify right side
    96,490.80x = 4,331,850,736.32
  5. Step 5: Solve for x
    x = 4,331,850,736.32/96,490.80
  6. Step 6: Final answer
    x = 44,893.92

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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.