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Finding the Fourth Proportional to 163,279.20, 244,918.80 and 162,242.40

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Solution

The fourth proportional to 163,279.20, 244,918.80 and 162,242.40 is: 243,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,279.20 : 244,918.80 = 162,242.40 : x
  2. Step 2: Convert to fraction form
    163,279.20/244,918.80 = 162,242.40/x
  3. Step 3: Cross multiply
    163,279.20x = 244,918.80 × 162,242.40
  4. Step 4: Simplify right side
    163,279.20x = 39,736,213,917.12
  5. Step 5: Solve for x
    x = 39,736,213,917.12/163,279.20
  6. Step 6: Final answer
    x = 243,363.60

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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.