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Finding the Fourth Proportional to 70,029.65, 104,890.16 and 57,883.91

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Solution

The fourth proportional to 70,029.65, 104,890.16 and 57,883.91 is: 86,698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,029.65 : 104,890.16 = 57,883.91 : x
  2. Step 2: Convert to fraction form
    70,029.65/104,890.16 = 57,883.91/x
  3. Step 3: Cross multiply
    70,029.65x = 104,890.16 × 57,883.91
  4. Step 4: Simplify right side
    70,029.65x = 6,071,452,201.58
  5. Step 5: Solve for x
    x = 6,071,452,201.58/70,029.65
  6. Step 6: Final answer
    x = 86,698.31

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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.