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Finding the Fourth Proportional to 370,611.16, 555,911.28 and 117,906.94

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Solution

The fourth proportional to 370,611.16, 555,911.28 and 117,906.94 is: 176,858.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,611.16 : 555,911.28 = 117,906.94 : x
  2. Step 2: Convert to fraction form
    370,611.16/555,911.28 = 117,906.94/x
  3. Step 3: Cross multiply
    370,611.16x = 555,911.28 × 117,906.94
  4. Step 4: Simplify right side
    370,611.16x = 65,545,797,936.28
  5. Step 5: Solve for x
    x = 65,545,797,936.28/370,611.16
  6. Step 6: Final answer
    x = 176,858.67

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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.