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Finding the Fourth Proportional to 168,672.30, 253,008.45 and 152,342.70

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Solution

The fourth proportional to 168,672.30, 253,008.45 and 152,342.70 is: 228,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,672.30 : 253,008.45 = 152,342.70 : x
  2. Step 2: Convert to fraction form
    168,672.30/253,008.45 = 152,342.70/x
  3. Step 3: Cross multiply
    168,672.30x = 253,008.45 × 152,342.70
  4. Step 4: Simplify right side
    168,672.30x = 38,543,990,395.82
  5. Step 5: Solve for x
    x = 38,543,990,395.82/168,672.30
  6. Step 6: Final answer
    x = 228,514.05

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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.