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Finding the Fourth Proportional to 84,368, 126,573.16 and 25,203.44

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Solution

The fourth proportional to 84,368, 126,573.16 and 25,203.44 is: 37,811.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,368 : 126,573.16 = 25,203.44 : x
  2. Step 2: Convert to fraction form
    84,368/126,573.16 = 25,203.44/x
  3. Step 3: Cross multiply
    84,368x = 126,573.16 × 25,203.44
  4. Step 4: Simplify right side
    84,368x = 3,190,079,043.67
  5. Step 5: Solve for x
    x = 3,190,079,043.67/84,368
  6. Step 6: Final answer
    x = 37,811.48

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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.