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Finding the Fourth Proportional to 66,203.24, 99,248.92 and 28,734.98

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Solution

The fourth proportional to 66,203.24, 99,248.92 and 28,734.98 is: 43,078.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,203.24 : 99,248.92 = 28,734.98 : x
  2. Step 2: Convert to fraction form
    66,203.24/99,248.92 = 28,734.98/x
  3. Step 3: Cross multiply
    66,203.24x = 99,248.92 × 28,734.98
  4. Step 4: Simplify right side
    66,203.24x = 2,851,915,731.22
  5. Step 5: Solve for x
    x = 2,851,915,731.22/66,203.24
  6. Step 6: Final answer
    x = 43,078.19

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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.