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Finding the Fourth Proportional to 363,428.45, 545,164.55 and 114,110.45

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Solution

The fourth proportional to 363,428.45, 545,164.55 and 114,110.45 is: 171,172.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,428.45 : 545,164.55 = 114,110.45 : x
  2. Step 2: Convert to fraction form
    363,428.45/545,164.55 = 114,110.45/x
  3. Step 3: Cross multiply
    363,428.45x = 545,164.55 × 114,110.45
  4. Step 4: Simplify right side
    363,428.45x = 62,208,968,828.17
  5. Step 5: Solve for x
    x = 62,208,968,828.17/363,428.45
  6. Step 6: Final answer
    x = 171,172.54

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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.