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Finding the Fourth Proportional to 453,840.78, 680,835.05 and 134,025.00

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Solution

The fourth proportional to 453,840.78, 680,835.05 and 134,025.00 is: 201,059.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,840.78 : 680,835.05 = 134,025.00 : x
  2. Step 2: Convert to fraction form
    453,840.78/680,835.05 = 134,025.00/x
  3. Step 3: Cross multiply
    453,840.78x = 680,835.05 × 134,025.00
  4. Step 4: Simplify right side
    453,840.78x = 91,248,915,609.48
  5. Step 5: Solve for x
    x = 91,248,915,609.48/453,840.78
  6. Step 6: Final answer
    x = 201,059.31

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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.