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Finding the Fourth Proportional to 272,338.60, 408,410.70 and 94,851.40

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Solution

The fourth proportional to 272,338.60, 408,410.70 and 94,851.40 is: 142,243.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,338.60 : 408,410.70 = 94,851.40 : x
  2. Step 2: Convert to fraction form
    272,338.60/408,410.70 = 94,851.40/x
  3. Step 3: Cross multiply
    272,338.60x = 408,410.70 × 94,851.40
  4. Step 4: Simplify right side
    272,338.60x = 38,738,326,669.98
  5. Step 5: Solve for x
    x = 38,738,326,669.98/272,338.60
  6. Step 6: Final answer
    x = 142,243.25

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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.