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Finding the Fourth Proportional to 112,960.40, 169,246.20 and 73,497.20

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Solution

The fourth proportional to 112,960.40, 169,246.20 and 73,497.20 is: 110,119.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,960.40 : 169,246.20 = 73,497.20 : x
  2. Step 2: Convert to fraction form
    112,960.40/169,246.20 = 73,497.20/x
  3. Step 3: Cross multiply
    112,960.40x = 169,246.20 × 73,497.20
  4. Step 4: Simplify right side
    112,960.40x = 12,439,121,810.64
  5. Step 5: Solve for x
    x = 12,439,121,810.64/112,960.40
  6. Step 6: Final answer
    x = 110,119.31

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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.