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Finding the Fourth Proportional to 86,762.52, 130,162.50 and 49,340.52

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Solution

The fourth proportional to 86,762.52, 130,162.50 and 49,340.52 is: 74,021.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,762.52 : 130,162.50 = 49,340.52 : x
  2. Step 2: Convert to fraction form
    86,762.52/130,162.50 = 49,340.52/x
  3. Step 3: Cross multiply
    86,762.52x = 130,162.50 × 49,340.52
  4. Step 4: Simplify right side
    86,762.52x = 6,422,285,434.50
  5. Step 5: Solve for x
    x = 6,422,285,434.50/86,762.52
  6. Step 6: Final answer
    x = 74,021.43

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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.