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Finding the Fourth Proportional to 92,796.57, 128,059.62 and 50,355.10

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Solution

The fourth proportional to 92,796.57, 128,059.62 and 50,355.10 is: 69,490.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,796.57 : 128,059.62 = 50,355.10 : x
  2. Step 2: Convert to fraction form
    92,796.57/128,059.62 = 50,355.10/x
  3. Step 3: Cross multiply
    92,796.57x = 128,059.62 × 50,355.10
  4. Step 4: Simplify right side
    92,796.57x = 6,448,454,971.06
  5. Step 5: Solve for x
    x = 6,448,454,971.06/92,796.57
  6. Step 6: Final answer
    x = 69,490.23

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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.