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Finding the Fourth Proportional to 171,975.90, 257,445.45 and 151,239.90

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Solution

The fourth proportional to 171,975.90, 257,445.45 and 151,239.90 is: 226,403.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,975.90 : 257,445.45 = 151,239.90 : x
  2. Step 2: Convert to fraction form
    171,975.90/257,445.45 = 151,239.90/x
  3. Step 3: Cross multiply
    171,975.90x = 257,445.45 × 151,239.90
  4. Step 4: Simplify right side
    171,975.90x = 38,936,024,113.46
  5. Step 5: Solve for x
    x = 38,936,024,113.46/171,975.90
  6. Step 6: Final answer
    x = 226,403.96

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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.