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Finding the Fourth Proportional to 247,207.20, 370,956.60 and 163,210.20

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Solution

The fourth proportional to 247,207.20, 370,956.60 and 163,210.20 is: 244,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,207.20 : 370,956.60 = 163,210.20 : x
  2. Step 2: Convert to fraction form
    247,207.20/370,956.60 = 163,210.20/x
  3. Step 3: Cross multiply
    247,207.20x = 370,956.60 × 163,210.20
  4. Step 4: Simplify right side
    247,207.20x = 60,543,900,877.32
  5. Step 5: Solve for x
    x = 60,543,900,877.32/247,207.20
  6. Step 6: Final answer
    x = 244,911.56

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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.