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Finding the Fourth Proportional to 92,796.54, 128,059.57 and 50,355.08

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Solution

The fourth proportional to 92,796.54, 128,059.57 and 50,355.08 is: 69,490.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,796.54 : 128,059.57 = 50,355.08 : x
  2. Step 2: Convert to fraction form
    92,796.54/128,059.57 = 50,355.08/x
  3. Step 3: Cross multiply
    92,796.54x = 128,059.57 × 50,355.08
  4. Step 4: Simplify right side
    92,796.54x = 6,448,449,125.93
  5. Step 5: Solve for x
    x = 6,448,449,125.93/92,796.54
  6. Step 6: Final answer
    x = 69,490.19

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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.