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Finding the Fourth Proportional to 228,792.33, 315,626.63 and 143,956.17

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Solution

The fourth proportional to 228,792.33, 315,626.63 and 143,956.17 is: 198,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,792.33 : 315,626.63 = 143,956.17 : x
  2. Step 2: Convert to fraction form
    228,792.33/315,626.63 = 143,956.17/x
  3. Step 3: Cross multiply
    228,792.33x = 315,626.63 × 143,956.17
  4. Step 4: Simplify right side
    228,792.33x = 45,436,400,085.03
  5. Step 5: Solve for x
    x = 45,436,400,085.03/228,792.33
  6. Step 6: Final answer
    x = 198,592.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.