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Finding the Fourth Proportional to 190,507.68, 285,772.32 and 57,406.32

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Solution

The fourth proportional to 190,507.68, 285,772.32 and 57,406.32 is: 86,112.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,507.68 : 285,772.32 = 57,406.32 : x
  2. Step 2: Convert to fraction form
    190,507.68/285,772.32 = 57,406.32/x
  3. Step 3: Cross multiply
    190,507.68x = 285,772.32 × 57,406.32
  4. Step 4: Simplify right side
    190,507.68x = 16,405,137,249.06
  5. Step 5: Solve for x
    x = 16,405,137,249.06/190,507.68
  6. Step 6: Final answer
    x = 86,112.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.