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Finding the Fourth Proportional to 172,185.91, 257,523.46 and 153,343.42

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Solution

The fourth proportional to 172,185.91, 257,523.46 and 153,343.42 is: 229,342.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,185.91 : 257,523.46 = 153,343.42 : x
  2. Step 2: Convert to fraction form
    172,185.91/257,523.46 = 153,343.42/x
  3. Step 3: Cross multiply
    172,185.91x = 257,523.46 × 153,343.42
  4. Step 4: Simplify right side
    172,185.91x = 39,489,528,600.22
  5. Step 5: Solve for x
    x = 39,489,528,600.22/172,185.91
  6. Step 6: Final answer
    x = 229,342.39

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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.