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Finding the Fourth Proportional to 70,559.57, 105,796.43 and 29,985.26

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Solution

The fourth proportional to 70,559.57, 105,796.43 and 29,985.26 is: 44,959.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,559.57 : 105,796.43 = 29,985.26 : x
  2. Step 2: Convert to fraction form
    70,559.57/105,796.43 = 29,985.26/x
  3. Step 3: Cross multiply
    70,559.57x = 105,796.43 × 29,985.26
  4. Step 4: Simplify right side
    70,559.57x = 3,172,332,781.71
  5. Step 5: Solve for x
    x = 3,172,332,781.71/70,559.57
  6. Step 6: Final answer
    x = 44,959.64

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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.