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Finding the Fourth Proportional to 86,860.76, 119,852.26 and 51,058

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Solution

The fourth proportional to 86,860.76, 119,852.26 and 51,058 is: 70,450.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,860.76 : 119,852.26 = 51,058 : x
  2. Step 2: Convert to fraction form
    86,860.76/119,852.26 = 51,058/x
  3. Step 3: Cross multiply
    86,860.76x = 119,852.26 × 51,058
  4. Step 4: Simplify right side
    86,860.76x = 6,119,416,691.08
  5. Step 5: Solve for x
    x = 6,119,416,691.08/86,860.76
  6. Step 6: Final answer
    x = 70,450.88

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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.