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Finding the Fourth Proportional to 366,173.40, 505,151.46 and 221,034.36

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Solution

The fourth proportional to 366,173.40, 505,151.46 and 221,034.36 is: 304,926.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,173.40 : 505,151.46 = 221,034.36 : x
  2. Step 2: Convert to fraction form
    366,173.40/505,151.46 = 221,034.36/x
  3. Step 3: Cross multiply
    366,173.40x = 505,151.46 × 221,034.36
  4. Step 4: Simplify right side
    366,173.40x = 111,655,829,664.17
  5. Step 5: Solve for x
    x = 111,655,829,664.17/366,173.40
  6. Step 6: Final answer
    x = 304,926.11

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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.