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Finding the Fourth Proportional to 86,680.01, 130,030.85 and 29,764.95

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Solution

The fourth proportional to 86,680.01, 130,030.85 and 29,764.95 is: 44,651.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,680.01 : 130,030.85 = 29,764.95 : x
  2. Step 2: Convert to fraction form
    86,680.01/130,030.85 = 29,764.95/x
  3. Step 3: Cross multiply
    86,680.01x = 130,030.85 × 29,764.95
  4. Step 4: Simplify right side
    86,680.01x = 3,870,361,599.88
  5. Step 5: Solve for x
    x = 3,870,361,599.88/86,680.01
  6. Step 6: Final answer
    x = 44,651.15

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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.