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Finding the Fourth Proportional to 478,714.57, 718,090.08 and 179,163.61

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Solution

The fourth proportional to 478,714.57, 718,090.08 and 179,163.61 is: 268,752.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,714.57 : 718,090.08 = 179,163.61 : x
  2. Step 2: Convert to fraction form
    478,714.57/718,090.08 = 179,163.61/x
  3. Step 3: Cross multiply
    478,714.57x = 718,090.08 × 179,163.61
  4. Step 4: Simplify right side
    478,714.57x = 128,655,611,037.99
  5. Step 5: Solve for x
    x = 128,655,611,037.99/478,714.57
  6. Step 6: Final answer
    x = 268,752.24

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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.