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Finding the Fourth Proportional to 165,614.80, 248,435.70 and 70,845.70

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Solution

The fourth proportional to 165,614.80, 248,435.70 and 70,845.70 is: 106,274.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,614.80 : 248,435.70 = 70,845.70 : x
  2. Step 2: Convert to fraction form
    165,614.80/248,435.70 = 70,845.70/x
  3. Step 3: Cross multiply
    165,614.80x = 248,435.70 × 70,845.70
  4. Step 4: Simplify right side
    165,614.80x = 17,600,601,071.49
  5. Step 5: Solve for x
    x = 17,600,601,071.49/165,614.80
  6. Step 6: Final answer
    x = 106,274.32

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1.5x scale

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.