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Finding the Fourth Proportional to 208,607.97, 312,643.71 and 94,672.56

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Solution

The fourth proportional to 208,607.97, 312,643.71 and 94,672.56 is: 141,887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,607.97 : 312,643.71 = 94,672.56 : x
  2. Step 2: Convert to fraction form
    208,607.97/312,643.71 = 94,672.56/x
  3. Step 3: Cross multiply
    208,607.97x = 312,643.71 × 94,672.56
  4. Step 4: Simplify right side
    208,607.97x = 29,598,780,393.60
  5. Step 5: Solve for x
    x = 29,598,780,393.60/208,607.97
  6. Step 6: Final answer
    x = 141,887.10

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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.