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Finding the Fourth Proportional to 235,283.50, 324,664.88 and 133,287.12

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Solution

The fourth proportional to 235,283.50, 324,664.88 and 133,287.12 is: 183,921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,283.50 : 324,664.88 = 133,287.12 : x
  2. Step 2: Convert to fraction form
    235,283.50/324,664.88 = 133,287.12/x
  3. Step 3: Cross multiply
    235,283.50x = 324,664.88 × 133,287.12
  4. Step 4: Simplify right side
    235,283.50x = 43,273,646,153.91
  5. Step 5: Solve for x
    x = 43,273,646,153.91/235,283.50
  6. Step 6: Final answer
    x = 183,921.29

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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.