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Finding the Fourth Proportional to 319,097.51, 478,651.26 and 94,480.73

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Solution

The fourth proportional to 319,097.51, 478,651.26 and 94,480.73 is: 141,722.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,097.51 : 478,651.26 = 94,480.73 : x
  2. Step 2: Convert to fraction form
    319,097.51/478,651.26 = 94,480.73/x
  3. Step 3: Cross multiply
    319,097.51x = 478,651.26 × 94,480.73
  4. Step 4: Simplify right side
    319,097.51x = 45,223,320,460.22
  5. Step 5: Solve for x
    x = 45,223,320,460.22/319,097.51
  6. Step 6: Final answer
    x = 141,722.57

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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.