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Finding the Fourth Proportional to 351,093.71, 484,509.36 and 189,948.67

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Solution

The fourth proportional to 351,093.71, 484,509.36 and 189,948.67 is: 262,129.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,093.71 : 484,509.36 = 189,948.67 : x
  2. Step 2: Convert to fraction form
    351,093.71/484,509.36 = 189,948.67/x
  3. Step 3: Cross multiply
    351,093.71x = 484,509.36 × 189,948.67
  4. Step 4: Simplify right side
    351,093.71x = 92,031,908,035.59
  5. Step 5: Solve for x
    x = 92,031,908,035.59/351,093.71
  6. Step 6: Final answer
    x = 262,129.18

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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.