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Finding the Fourth Proportional to 92,809.94, 128,077.20 and 50,368.37

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Solution

The fourth proportional to 92,809.94, 128,077.20 and 50,368.37 is: 69,508.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,809.94 : 128,077.20 = 50,368.37 : x
  2. Step 2: Convert to fraction form
    92,809.94/128,077.20 = 50,368.37/x
  3. Step 3: Cross multiply
    92,809.94x = 128,077.20 × 50,368.37
  4. Step 4: Simplify right side
    92,809.94x = 6,451,039,157.78
  5. Step 5: Solve for x
    x = 6,451,039,157.78/92,809.94
  6. Step 6: Final answer
    x = 69,508.07

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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.