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Finding the Fourth Proportional to 354,507.61, 531,830.56 and 114,680.96

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Solution

The fourth proportional to 354,507.61, 531,830.56 and 114,680.96 is: 172,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,507.61 : 531,830.56 = 114,680.96 : x
  2. Step 2: Convert to fraction form
    354,507.61/531,830.56 = 114,680.96/x
  3. Step 3: Cross multiply
    354,507.61x = 531,830.56 × 114,680.96
  4. Step 4: Simplify right side
    354,507.61x = 60,990,841,433.22
  5. Step 5: Solve for x
    x = 60,990,841,433.22/354,507.61
  6. Step 6: Final answer
    x = 172,043.81

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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.