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Finding the Fourth Proportional to 163,214.20, 244,529.70 and 139,886.20

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Solution

The fourth proportional to 163,214.20, 244,529.70 and 139,886.20 is: 209,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,214.20 : 244,529.70 = 139,886.20 : x
  2. Step 2: Convert to fraction form
    163,214.20/244,529.70 = 139,886.20/x
  3. Step 3: Cross multiply
    163,214.20x = 244,529.70 × 139,886.20
  4. Step 4: Simplify right side
    163,214.20x = 34,206,330,520.14
  5. Step 5: Solve for x
    x = 34,206,330,520.14/163,214.20
  6. Step 6: Final answer
    x = 209,579.38

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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.