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Finding the Fourth Proportional to 190,482.28, 262,871.94 and 105,594.28

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Solution

The fourth proportional to 190,482.28, 262,871.94 and 105,594.28 is: 145,723.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,482.28 : 262,871.94 = 105,594.28 : x
  2. Step 2: Convert to fraction form
    190,482.28/262,871.94 = 105,594.28/x
  3. Step 3: Cross multiply
    190,482.28x = 262,871.94 × 105,594.28
  4. Step 4: Simplify right side
    190,482.28x = 27,757,773,236.50
  5. Step 5: Solve for x
    x = 27,757,773,236.50/190,482.28
  6. Step 6: Final answer
    x = 145,723.65

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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.