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Finding the Fourth Proportional to 168,714.72, 253,106.16 and 75,220.56

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Solution

The fourth proportional to 168,714.72, 253,106.16 and 75,220.56 is: 112,846.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,714.72 : 253,106.16 = 75,220.56 : x
  2. Step 2: Convert to fraction form
    168,714.72/253,106.16 = 75,220.56/x
  3. Step 3: Cross multiply
    168,714.72x = 253,106.16 × 75,220.56
  4. Step 4: Simplify right side
    168,714.72x = 19,038,787,094.65
  5. Step 5: Solve for x
    x = 19,038,787,094.65/168,714.72
  6. Step 6: Final answer
    x = 112,846.03

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1.5x scale

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.