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Finding the Fourth Proportional to 478,717.57, 718,094.58 and 179,166.61

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Solution

The fourth proportional to 478,717.57, 718,094.58 and 179,166.61 is: 268,756.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,717.57 : 718,094.58 = 179,166.61 : x
  2. Step 2: Convert to fraction form
    478,717.57/718,094.58 = 179,166.61/x
  3. Step 3: Cross multiply
    478,717.57x = 718,094.58 × 179,166.61
  4. Step 4: Simplify right side
    478,717.57x = 128,658,571,557.97
  5. Step 5: Solve for x
    x = 128,658,571,557.97/478,717.57
  6. Step 6: Final answer
    x = 268,756.74

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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.