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Finding the Fourth Proportional to 92,890.82, 128,188.77 and 50,448.98

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Solution

The fourth proportional to 92,890.82, 128,188.77 and 50,448.98 is: 69,619.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,890.82 : 128,188.77 = 50,448.98 : x
  2. Step 2: Convert to fraction form
    92,890.82/128,188.77 = 50,448.98/x
  3. Step 3: Cross multiply
    92,890.82x = 128,188.77 × 50,448.98
  4. Step 4: Simplify right side
    92,890.82x = 6,466,992,693.95
  5. Step 5: Solve for x
    x = 6,466,992,693.95/92,890.82
  6. Step 6: Final answer
    x = 69,619.29

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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.