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Finding the Fourth Proportional to 113,244.16, 169,730.16 and 79,914.28

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Solution

The fourth proportional to 113,244.16, 169,730.16 and 79,914.28 is: 119,775.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,244.16 : 169,730.16 = 79,914.28 : x
  2. Step 2: Convert to fraction form
    113,244.16/169,730.16 = 79,914.28/x
  3. Step 3: Cross multiply
    113,244.16x = 169,730.16 × 79,914.28
  4. Step 4: Simplify right side
    113,244.16x = 13,563,863,530.68
  5. Step 5: Solve for x
    x = 13,563,863,530.68/113,244.16
  6. Step 6: Final answer
    x = 119,775.39

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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.