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Finding the Fourth Proportional to 115,388.64, 173,230.59 and 97,969.14

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Solution

The fourth proportional to 115,388.64, 173,230.59 and 97,969.14 is: 147,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,388.64 : 173,230.59 = 97,969.14 : x
  2. Step 2: Convert to fraction form
    115,388.64/173,230.59 = 97,969.14/x
  3. Step 3: Cross multiply
    115,388.64x = 173,230.59 × 97,969.14
  4. Step 4: Simplify right side
    115,388.64x = 16,971,251,923.99
  5. Step 5: Solve for x
    x = 16,971,251,923.99/115,388.64
  6. Step 6: Final answer
    x = 147,079.05

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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.