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Finding the Fourth Proportional to 273,866.60, 410,871.90 and 86,877.80

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Solution

The fourth proportional to 273,866.60, 410,871.90 and 86,877.80 is: 130,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,866.60 : 410,871.90 = 86,877.80 : x
  2. Step 2: Convert to fraction form
    273,866.60/410,871.90 = 86,877.80/x
  3. Step 3: Cross multiply
    273,866.60x = 410,871.90 × 86,877.80
  4. Step 4: Simplify right side
    273,866.60x = 35,695,646,753.82
  5. Step 5: Solve for x
    x = 35,695,646,753.82/273,866.60
  6. Step 6: Final answer
    x = 130,339.54

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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.