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Finding the Fourth Proportional to 167,880.40, 252,112.20 and 89,148.40

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Solution

The fourth proportional to 167,880.40, 252,112.20 and 89,148.40 is: 133,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,880.40 : 252,112.20 = 89,148.40 : x
  2. Step 2: Convert to fraction form
    167,880.40/252,112.20 = 89,148.40/x
  3. Step 3: Cross multiply
    167,880.40x = 252,112.20 × 89,148.40
  4. Step 4: Simplify right side
    167,880.40x = 22,475,399,250.48
  5. Step 5: Solve for x
    x = 22,475,399,250.48/167,880.40
  6. Step 6: Final answer
    x = 133,877.45

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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.