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Finding the Fourth Proportional to 107,190.70, 160,771.15 and 75,072.47

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Solution

The fourth proportional to 107,190.70, 160,771.15 and 75,072.47 is: 112,598.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,190.70 : 160,771.15 = 75,072.47 : x
  2. Step 2: Convert to fraction form
    107,190.70/160,771.15 = 75,072.47/x
  3. Step 3: Cross multiply
    107,190.70x = 160,771.15 × 75,072.47
  4. Step 4: Simplify right side
    107,190.70x = 12,069,487,549.49
  5. Step 5: Solve for x
    x = 12,069,487,549.49/107,190.70
  6. Step 6: Final answer
    x = 112,598.27

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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.