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Finding the Fourth Proportional to 355,425.72, 533,166.06 and 118,769.22

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Solution

The fourth proportional to 355,425.72, 533,166.06 and 118,769.22 is: 178,163.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,425.72 : 533,166.06 = 118,769.22 : x
  2. Step 2: Convert to fraction form
    355,425.72/533,166.06 = 118,769.22/x
  3. Step 3: Cross multiply
    355,425.72x = 533,166.06 × 118,769.22
  4. Step 4: Simplify right side
    355,425.72x = 63,323,717,076.67
  5. Step 5: Solve for x
    x = 63,323,717,076.67/355,425.72
  6. Step 6: Final answer
    x = 178,163.01

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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.