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Finding the Fourth Proportional to 478,632.52, 718,073.31 and 179,136.64

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Solution

The fourth proportional to 478,632.52, 718,073.31 and 179,136.64 is: 268,751.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,632.52 : 718,073.31 = 179,136.64 : x
  2. Step 2: Convert to fraction form
    478,632.52/718,073.31 = 179,136.64/x
  3. Step 3: Cross multiply
    478,632.52x = 718,073.31 × 179,136.64
  4. Step 4: Simplify right side
    478,632.52x = 128,633,240,027.08
  5. Step 5: Solve for x
    x = 128,633,240,027.08/478,632.52
  6. Step 6: Final answer
    x = 268,751.57

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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.