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Finding the Fourth Proportional to 92,631.35, 139,133.03 and 55,264.34

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Solution

The fourth proportional to 92,631.35, 139,133.03 and 55,264.34 is: 83,007.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,631.35 : 139,133.03 = 55,264.34 : x
  2. Step 2: Convert to fraction form
    92,631.35/139,133.03 = 55,264.34/x
  3. Step 3: Cross multiply
    92,631.35x = 139,133.03 × 55,264.34
  4. Step 4: Simplify right side
    92,631.35x = 7,689,095,146.66
  5. Step 5: Solve for x
    x = 7,689,095,146.66/92,631.35
  6. Step 6: Final answer
    x = 83,007.48

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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.