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Finding the Fourth Proportional to 92,745.84, 139,127.10 and 26,186.64

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Solution

The fourth proportional to 92,745.84, 139,127.10 and 26,186.64 is: 39,282.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,745.84 : 139,127.10 = 26,186.64 : x
  2. Step 2: Convert to fraction form
    92,745.84/139,127.10 = 26,186.64/x
  3. Step 3: Cross multiply
    92,745.84x = 139,127.10 × 26,186.64
  4. Step 4: Simplify right side
    92,745.84x = 3,643,271,281.94
  5. Step 5: Solve for x
    x = 3,643,271,281.94/92,745.84
  6. Step 6: Final answer
    x = 39,282.31

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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.