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Finding the Fourth Proportional to 478,627.02, 718,065.06 and 179,131.14

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Solution

The fourth proportional to 478,627.02, 718,065.06 and 179,131.14 is: 268,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,627.02 : 718,065.06 = 179,131.14 : x
  2. Step 2: Convert to fraction form
    478,627.02/718,065.06 = 179,131.14/x
  3. Step 3: Cross multiply
    478,627.02x = 718,065.06 × 179,131.14
  4. Step 4: Simplify right side
    478,627.02x = 128,627,812,791.97
  5. Step 5: Solve for x
    x = 128,627,812,791.97/478,627.02
  6. Step 6: Final answer
    x = 268,743.32

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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.