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Finding the Fourth Proportional to 190,958, 286,338.54 and 131,077.96

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Solution

The fourth proportional to 190,958, 286,338.54 and 131,077.96 is: 196,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,958 : 286,338.54 = 131,077.96 : x
  2. Step 2: Convert to fraction form
    190,958/286,338.54 = 131,077.96/x
  3. Step 3: Cross multiply
    190,958x = 286,338.54 × 131,077.96
  4. Step 4: Simplify right side
    190,958x = 37,532,671,692.58
  5. Step 5: Solve for x
    x = 37,532,671,692.58/190,958
  6. Step 6: Final answer
    x = 196,549.35

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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.