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Finding the Fourth Proportional to 273,903.31, 410,875.62 and 81,762.56

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Solution

The fourth proportional to 273,903.31, 410,875.62 and 81,762.56 is: 122,650.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,903.31 : 410,875.62 = 81,762.56 : x
  2. Step 2: Convert to fraction form
    273,903.31/410,875.62 = 81,762.56/x
  3. Step 3: Cross multiply
    273,903.31x = 410,875.62 × 81,762.56
  4. Step 4: Simplify right side
    273,903.31x = 33,594,242,532.79
  5. Step 5: Solve for x
    x = 33,594,242,532.79/273,903.31
  6. Step 6: Final answer
    x = 122,650.01

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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.