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Finding the Fourth Proportional to 478,716.32, 718,092.71 and 179,165.36

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Solution

The fourth proportional to 478,716.32, 718,092.71 and 179,165.36 is: 268,754.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,716.32 : 718,092.71 = 179,165.36 : x
  2. Step 2: Convert to fraction form
    478,716.32/718,092.71 = 179,165.36/x
  3. Step 3: Cross multiply
    478,716.32x = 718,092.71 × 179,165.36
  4. Step 4: Simplify right side
    478,716.32x = 128,657,338,004.70
  5. Step 5: Solve for x
    x = 128,657,338,004.70/478,716.32
  6. Step 6: Final answer
    x = 268,754.86

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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.