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Finding the Fourth Proportional to 448,234.60, 672,351.90 and 167,715.40

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Solution

The fourth proportional to 448,234.60, 672,351.90 and 167,715.40 is: 251,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,234.60 : 672,351.90 = 167,715.40 : x
  2. Step 2: Convert to fraction form
    448,234.60/672,351.90 = 167,715.40/x
  3. Step 3: Cross multiply
    448,234.60x = 672,351.90 × 167,715.40
  4. Step 4: Simplify right side
    448,234.60x = 112,763,767,849.26
  5. Step 5: Solve for x
    x = 112,763,767,849.26/448,234.60
  6. Step 6: Final answer
    x = 251,573.10

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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.