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Finding the Fourth Proportional to 165,606.80, 248,423.70 and 70,837.70

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Solution

The fourth proportional to 165,606.80, 248,423.70 and 70,837.70 is: 106,262.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,606.80 : 248,423.70 = 70,837.70 : x
  2. Step 2: Convert to fraction form
    165,606.80/248,423.70 = 70,837.70/x
  3. Step 3: Cross multiply
    165,606.80x = 248,423.70 × 70,837.70
  4. Step 4: Simplify right side
    165,606.80x = 17,597,763,533.49
  5. Step 5: Solve for x
    x = 17,597,763,533.49/165,606.80
  6. Step 6: Final answer
    x = 106,262.32

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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.