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Finding the Fourth Proportional to 92,808.92, 128,075.64 and 50,366.54

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Solution

The fourth proportional to 92,808.92, 128,075.64 and 50,366.54 is: 69,505.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,808.92 : 128,075.64 = 50,366.54 : x
  2. Step 2: Convert to fraction form
    92,808.92/128,075.64 = 50,366.54/x
  3. Step 3: Cross multiply
    92,808.92x = 128,075.64 × 50,366.54
  4. Step 4: Simplify right side
    92,808.92x = 6,450,726,845.09
  5. Step 5: Solve for x
    x = 6,450,726,845.09/92,808.92
  6. Step 6: Final answer
    x = 69,505.46

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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.