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Finding the Fourth Proportional to 172,484.64, 237,964.96 and 172,218.63

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Solution

The fourth proportional to 172,484.64, 237,964.96 and 172,218.63 is: 237,597.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,484.64 : 237,964.96 = 172,218.63 : x
  2. Step 2: Convert to fraction form
    172,484.64/237,964.96 = 172,218.63/x
  3. Step 3: Cross multiply
    172,484.64x = 237,964.96 × 172,218.63
  4. Step 4: Simplify right side
    172,484.64x = 40,981,998,968.66
  5. Step 5: Solve for x
    x = 40,981,998,968.66/172,484.64
  6. Step 6: Final answer
    x = 237,597.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.