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Finding the Fourth Proportional to 216,792.90, 325,189.35 and 197,109.90

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Solution

The fourth proportional to 216,792.90, 325,189.35 and 197,109.90 is: 295,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,792.90 : 325,189.35 = 197,109.90 : x
  2. Step 2: Convert to fraction form
    216,792.90/325,189.35 = 197,109.90/x
  3. Step 3: Cross multiply
    216,792.90x = 325,189.35 × 197,109.90
  4. Step 4: Simplify right side
    216,792.90x = 64,098,040,259.57
  5. Step 5: Solve for x
    x = 64,098,040,259.57/216,792.90
  6. Step 6: Final answer
    x = 295,664.85

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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.