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Finding the Fourth Proportional to 119,848.60, 179,967.30 and 86,800.60

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Solution

The fourth proportional to 119,848.60, 179,967.30 and 86,800.60 is: 130,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,848.60 : 179,967.30 = 86,800.60 : x
  2. Step 2: Convert to fraction form
    119,848.60/179,967.30 = 86,800.60/x
  3. Step 3: Cross multiply
    119,848.60x = 179,967.30 × 86,800.60
  4. Step 4: Simplify right side
    119,848.60x = 15,621,269,620.38
  5. Step 5: Solve for x
    x = 15,621,269,620.38/119,848.60
  6. Step 6: Final answer
    x = 130,341.69

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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.