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Finding the Fourth Proportional to 344,842.10, 516,955.35 and 134,431.10

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Solution

The fourth proportional to 344,842.10, 516,955.35 and 134,431.10 is: 201,526.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,842.10 : 516,955.35 = 134,431.10 : x
  2. Step 2: Convert to fraction form
    344,842.10/516,955.35 = 134,431.10/x
  3. Step 3: Cross multiply
    344,842.10x = 516,955.35 × 134,431.10
  4. Step 4: Simplify right side
    344,842.10x = 69,494,876,351.39
  5. Step 5: Solve for x
    x = 69,494,876,351.39/344,842.10
  6. Step 6: Final answer
    x = 201,526.66

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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.