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Finding the Fourth Proportional to 217,280.30, 325,920.45 and 164,792.30

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Solution

The fourth proportional to 217,280.30, 325,920.45 and 164,792.30 is: 247,188.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,280.30 : 325,920.45 = 164,792.30 : x
  2. Step 2: Convert to fraction form
    217,280.30/325,920.45 = 164,792.30/x
  3. Step 3: Cross multiply
    217,280.30x = 325,920.45 × 164,792.30
  4. Step 4: Simplify right side
    217,280.30x = 53,709,180,572.54
  5. Step 5: Solve for x
    x = 53,709,180,572.54/217,280.30
  6. Step 6: Final answer
    x = 247,188.45

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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.