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Finding the Fourth Proportional to 247,206.16, 370,919.80 and 114,015.20

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Solution

The fourth proportional to 247,206.16, 370,919.80 and 114,015.20 is: 171,073.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,206.16 : 370,919.80 = 114,015.20 : x
  2. Step 2: Convert to fraction form
    247,206.16/370,919.80 = 114,015.20/x
  3. Step 3: Cross multiply
    247,206.16x = 370,919.80 × 114,015.20
  4. Step 4: Simplify right side
    247,206.16x = 42,290,495,180.96
  5. Step 5: Solve for x
    x = 42,290,495,180.96/247,206.16
  6. Step 6: Final answer
    x = 171,073.79

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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.