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Finding the Fourth Proportional to 319,143.37, 478,716.63 and 94,508.05

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Solution

The fourth proportional to 319,143.37, 478,716.63 and 94,508.05 is: 141,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,143.37 : 478,716.63 = 94,508.05 : x
  2. Step 2: Convert to fraction form
    319,143.37/478,716.63 = 94,508.05/x
  3. Step 3: Cross multiply
    319,143.37x = 478,716.63 × 94,508.05
  4. Step 4: Simplify right side
    319,143.37x = 45,242,575,203.87
  5. Step 5: Solve for x
    x = 45,242,575,203.87/319,143.37
  6. Step 6: Final answer
    x = 141,762.54

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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.