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Finding the Fourth Proportional to 92,920.37, 128,250.03 and 56,633.61

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Solution

The fourth proportional to 92,920.37, 128,250.03 and 56,633.61 is: 78,166.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,920.37 : 128,250.03 = 56,633.61 : x
  2. Step 2: Convert to fraction form
    92,920.37/128,250.03 = 56,633.61/x
  3. Step 3: Cross multiply
    92,920.37x = 128,250.03 × 56,633.61
  4. Step 4: Simplify right side
    92,920.37x = 7,263,262,874.82
  5. Step 5: Solve for x
    x = 7,263,262,874.82/92,920.37
  6. Step 6: Final answer
    x = 78,166.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.