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Finding the Fourth Proportional to 478,992.64, 718,544.55 and 159,173.05

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Solution

The fourth proportional to 478,992.64, 718,544.55 and 159,173.05 is: 238,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,992.64 : 718,544.55 = 159,173.05 : x
  2. Step 2: Convert to fraction form
    478,992.64/718,544.55 = 159,173.05/x
  3. Step 3: Cross multiply
    478,992.64x = 718,544.55 × 159,173.05
  4. Step 4: Simplify right side
    478,992.64x = 114,372,926,389.16
  5. Step 5: Solve for x
    x = 114,372,926,389.16/478,992.64
  6. Step 6: Final answer
    x = 238,778.05

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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.