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Finding the Fourth Proportional to 167,780.40, 251,962.20 and 89,048.40

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Solution

The fourth proportional to 167,780.40, 251,962.20 and 89,048.40 is: 133,727.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,780.40 : 251,962.20 = 89,048.40 : x
  2. Step 2: Convert to fraction form
    167,780.40/251,962.20 = 89,048.40/x
  3. Step 3: Cross multiply
    167,780.40x = 251,962.20 × 89,048.40
  4. Step 4: Simplify right side
    167,780.40x = 22,436,830,770.48
  5. Step 5: Solve for x
    x = 22,436,830,770.48/167,780.40
  6. Step 6: Final answer
    x = 133,727.36

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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.