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Finding the Fourth Proportional to 168,956.65, 253,006.38 and 101,447

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Solution

The fourth proportional to 168,956.65, 253,006.38 and 101,447 is: 151,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,956.65 : 253,006.38 = 101,447 : x
  2. Step 2: Convert to fraction form
    168,956.65/253,006.38 = 101,447/x
  3. Step 3: Cross multiply
    168,956.65x = 253,006.38 × 101,447
  4. Step 4: Simplify right side
    168,956.65x = 25,666,738,231.86
  5. Step 5: Solve for x
    x = 25,666,738,231.86/168,956.65
  6. Step 6: Final answer
    x = 151,913.16

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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.