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Finding the Fourth Proportional to 130,636.56, 195,985.62 and 37,143.12

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Solution

The fourth proportional to 130,636.56, 195,985.62 and 37,143.12 is: 55,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,636.56 : 195,985.62 = 37,143.12 : x
  2. Step 2: Convert to fraction form
    130,636.56/195,985.62 = 37,143.12/x
  3. Step 3: Cross multiply
    130,636.56x = 195,985.62 × 37,143.12
  4. Step 4: Simplify right side
    130,636.56x = 7,279,517,401.93
  5. Step 5: Solve for x
    x = 7,279,517,401.93/130,636.56
  6. Step 6: Final answer
    x = 55,723.43

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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.