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Finding the Fourth Proportional to 70,029.80, 104,957.10 and 34,979.24

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Solution

The fourth proportional to 70,029.80, 104,957.10 and 34,979.24 is: 52,425.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,029.80 : 104,957.10 = 34,979.24 : x
  2. Step 2: Convert to fraction form
    70,029.80/104,957.10 = 34,979.24/x
  3. Step 3: Cross multiply
    70,029.80x = 104,957.10 × 34,979.24
  4. Step 4: Simplify right side
    70,029.80x = 3,671,319,590.60
  5. Step 5: Solve for x
    x = 3,671,319,590.60/70,029.80
  6. Step 6: Final answer
    x = 52,425.10

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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.