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Finding the Fourth Proportional to 126,656.55, 189,956.42 and 37,898.67

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Solution

The fourth proportional to 126,656.55, 189,956.42 and 37,898.67 is: 56,839.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,656.55 : 189,956.42 = 37,898.67 : x
  2. Step 2: Convert to fraction form
    126,656.55/189,956.42 = 37,898.67/x
  3. Step 3: Cross multiply
    126,656.55x = 189,956.42 × 37,898.67
  4. Step 4: Simplify right side
    126,656.55x = 7,199,095,675.96
  5. Step 5: Solve for x
    x = 7,199,095,675.96/126,656.55
  6. Step 6: Final answer
    x = 56,839.51

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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.