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Finding the Fourth Proportional to 163,048.70, 244,573.05 and 139,720.70

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Solution

The fourth proportional to 163,048.70, 244,573.05 and 139,720.70 is: 209,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,048.70 : 244,573.05 = 139,720.70 : x
  2. Step 2: Convert to fraction form
    163,048.70/244,573.05 = 139,720.70/x
  3. Step 3: Cross multiply
    163,048.70x = 244,573.05 × 139,720.70
  4. Step 4: Simplify right side
    163,048.70x = 34,171,917,747.14
  5. Step 5: Solve for x
    x = 34,171,917,747.14/163,048.70
  6. Step 6: Final answer
    x = 209,581.05

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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.