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Finding the Fourth Proportional to 74,127.40, 111,200.70 and 36,706.60

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Solution

The fourth proportional to 74,127.40, 111,200.70 and 36,706.60 is: 55,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,127.40 : 111,200.70 = 36,706.60 : x
  2. Step 2: Convert to fraction form
    74,127.40/111,200.70 = 36,706.60/x
  3. Step 3: Cross multiply
    74,127.40x = 111,200.70 × 36,706.60
  4. Step 4: Simplify right side
    74,127.40x = 4,081,799,614.62
  5. Step 5: Solve for x
    x = 4,081,799,614.62/74,127.40
  6. Step 6: Final answer
    x = 55,064.65

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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.