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Finding the Fourth Proportional to 174,954.40, 262,252.40 and 86,071.20

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Solution

The fourth proportional to 174,954.40, 262,252.40 and 86,071.20 is: 129,018.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,954.40 : 262,252.40 = 86,071.20 : x
  2. Step 2: Convert to fraction form
    174,954.40/262,252.40 = 86,071.20/x
  3. Step 3: Cross multiply
    174,954.40x = 262,252.40 × 86,071.20
  4. Step 4: Simplify right side
    174,954.40x = 22,572,378,770.88
  5. Step 5: Solve for x
    x = 22,572,378,770.88/174,954.40
  6. Step 6: Final answer
    x = 129,018.64

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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.