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Finding the Fourth Proportional to 351,667.38, 485,300.28 and 190,526.40

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Solution

The fourth proportional to 351,667.38, 485,300.28 and 190,526.40 is: 262,926.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,667.38 : 485,300.28 = 190,526.40 : x
  2. Step 2: Convert to fraction form
    351,667.38/485,300.28 = 190,526.40/x
  3. Step 3: Cross multiply
    351,667.38x = 485,300.28 × 190,526.40
  4. Step 4: Simplify right side
    351,667.38x = 92,462,515,267.39
  5. Step 5: Solve for x
    x = 92,462,515,267.39/351,667.38
  6. Step 6: Final answer
    x = 262,926.05

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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.