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Finding the Fourth Proportional to 354,266.64, 531,400.53 and 107,792.43

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Solution

The fourth proportional to 354,266.64, 531,400.53 and 107,792.43 is: 161,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,266.64 : 531,400.53 = 107,792.43 : x
  2. Step 2: Convert to fraction form
    354,266.64/531,400.53 = 107,792.43/x
  3. Step 3: Cross multiply
    354,266.64x = 531,400.53 × 107,792.43
  4. Step 4: Simplify right side
    354,266.64x = 57,280,954,431.99
  5. Step 5: Solve for x
    x = 57,280,954,431.99/354,266.64
  6. Step 6: Final answer
    x = 161,688.82

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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.