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Finding the Fourth Proportional to 132,235.72, 198,315.90 and 37,459.64

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Solution

The fourth proportional to 132,235.72, 198,315.90 and 37,459.64 is: 56,178.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,235.72 : 198,315.90 = 37,459.64 : x
  2. Step 2: Convert to fraction form
    132,235.72/198,315.90 = 37,459.64/x
  3. Step 3: Cross multiply
    132,235.72x = 198,315.90 × 37,459.64
  4. Step 4: Simplify right side
    132,235.72x = 7,428,842,220.28
  5. Step 5: Solve for x
    x = 7,428,842,220.28/132,235.72
  6. Step 6: Final answer
    x = 56,178.79

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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.