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Finding the Fourth Proportional to 113,300.40, 169,950.60 and 54,251.40

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Solution

The fourth proportional to 113,300.40, 169,950.60 and 54,251.40 is: 81,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,300.40 : 169,950.60 = 54,251.40 : x
  2. Step 2: Convert to fraction form
    113,300.40/169,950.60 = 54,251.40/x
  3. Step 3: Cross multiply
    113,300.40x = 169,950.60 × 54,251.40
  4. Step 4: Simplify right side
    113,300.40x = 9,220,057,980.84
  5. Step 5: Solve for x
    x = 9,220,057,980.84/113,300.40
  6. Step 6: Final answer
    x = 81,377.10

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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.