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Finding the Fourth Proportional to 86,842.56, 119,866.30 and 51,044.06

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Solution

The fourth proportional to 86,842.56, 119,866.30 and 51,044.06 is: 70,454.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,842.56 : 119,866.30 = 51,044.06 : x
  2. Step 2: Convert to fraction form
    86,842.56/119,866.30 = 51,044.06/x
  3. Step 3: Cross multiply
    86,842.56x = 119,866.30 × 51,044.06
  4. Step 4: Simplify right side
    86,842.56x = 6,118,462,609.18
  5. Step 5: Solve for x
    x = 6,118,462,609.18/86,842.56
  6. Step 6: Final answer
    x = 70,454.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.