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Finding the Fourth Proportional to 86,904.95, 130,252.16 and 36,879.96

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Solution

The fourth proportional to 86,904.95, 130,252.16 and 36,879.96 is: 55,275.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,904.95 : 130,252.16 = 36,879.96 : x
  2. Step 2: Convert to fraction form
    86,904.95/130,252.16 = 36,879.96/x
  3. Step 3: Cross multiply
    86,904.95x = 130,252.16 × 36,879.96
  4. Step 4: Simplify right side
    86,904.95x = 4,803,694,266.31
  5. Step 5: Solve for x
    x = 4,803,694,266.31/86,904.95
  6. Step 6: Final answer
    x = 55,275.27

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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.