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Finding the Fourth Proportional to 319,180.41, 478,840.64 and 94,558.40

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Solution

The fourth proportional to 319,180.41, 478,840.64 and 94,558.40 is: 141,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,180.41 : 478,840.64 = 94,558.40 : x
  2. Step 2: Convert to fraction form
    319,180.41/478,840.64 = 94,558.40/x
  3. Step 3: Cross multiply
    319,180.41x = 478,840.64 × 94,558.40
  4. Step 4: Simplify right side
    319,180.41x = 45,278,403,702.03
  5. Step 5: Solve for x
    x = 45,278,403,702.03/319,180.41
  6. Step 6: Final answer
    x = 141,858.34

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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.