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Finding the Fourth Proportional to 114,605.80, 171,908.70 and 112,856.20

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Solution

The fourth proportional to 114,605.80, 171,908.70 and 112,856.20 is: 169,284.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,605.80 : 171,908.70 = 112,856.20 : x
  2. Step 2: Convert to fraction form
    114,605.80/171,908.70 = 112,856.20/x
  3. Step 3: Cross multiply
    114,605.80x = 171,908.70 × 112,856.20
  4. Step 4: Simplify right side
    114,605.80x = 19,400,962,628.94
  5. Step 5: Solve for x
    x = 19,400,962,628.94/114,605.80
  6. Step 6: Final answer
    x = 169,284.30

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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.