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Finding the Fourth Proportional to 92,776.50, 139,188.51 and 30,447.54

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Solution

The fourth proportional to 92,776.50, 139,188.51 and 30,447.54 is: 45,679.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,776.50 : 139,188.51 = 30,447.54 : x
  2. Step 2: Convert to fraction form
    92,776.50/139,188.51 = 30,447.54/x
  3. Step 3: Cross multiply
    92,776.50x = 139,188.51 × 30,447.54
  4. Step 4: Simplify right side
    92,776.50x = 4,237,947,725.77
  5. Step 5: Solve for x
    x = 4,237,947,725.77/92,776.50
  6. Step 6: Final answer
    x = 45,679.11

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1.5x scale

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.