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Finding the Fourth Proportional to 86,860.96, 130,258.63 and 36,964.55

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Solution

The fourth proportional to 86,860.96, 130,258.63 and 36,964.55 is: 55,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,860.96 : 130,258.63 = 36,964.55 : x
  2. Step 2: Convert to fraction form
    86,860.96/130,258.63 = 36,964.55/x
  3. Step 3: Cross multiply
    86,860.96x = 130,258.63 × 36,964.55
  4. Step 4: Simplify right side
    86,860.96x = 4,814,952,013.42
  5. Step 5: Solve for x
    x = 4,814,952,013.42/86,860.96
  6. Step 6: Final answer
    x = 55,432.87

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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.