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Finding the Fourth Proportional to 92,659.52, 139,002.08 and 30,309.44

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Solution

The fourth proportional to 92,659.52, 139,002.08 and 30,309.44 is: 45,468.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,659.52 : 139,002.08 = 30,309.44 : x
  2. Step 2: Convert to fraction form
    92,659.52/139,002.08 = 30,309.44/x
  3. Step 3: Cross multiply
    92,659.52x = 139,002.08 × 30,309.44
  4. Step 4: Simplify right side
    92,659.52x = 4,213,075,203.64
  5. Step 5: Solve for x
    x = 4,213,075,203.64/92,659.52
  6. Step 6: Final answer
    x = 45,468.35

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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.