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Finding the Fourth Proportional to 92,809.89, 128,077.74 and 50,368.41

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Solution

The fourth proportional to 92,809.89, 128,077.74 and 50,368.41 is: 69,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,809.89 : 128,077.74 = 50,368.41 : x
  2. Step 2: Convert to fraction form
    92,809.89/128,077.74 = 50,368.41/x
  3. Step 3: Cross multiply
    92,809.89x = 128,077.74 × 50,368.41
  4. Step 4: Simplify right side
    92,809.89x = 6,451,072,120.19
  5. Step 5: Solve for x
    x = 6,451,072,120.19/92,809.89
  6. Step 6: Final answer
    x = 69,508.46

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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.