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Finding the Fourth Proportional to 310,816.79, 428,926.54 and 174,850.83

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Solution

The fourth proportional to 310,816.79, 428,926.54 and 174,850.83 is: 241,293.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,816.79 : 428,926.54 = 174,850.83 : x
  2. Step 2: Convert to fraction form
    310,816.79/428,926.54 = 174,850.83/x
  3. Step 3: Cross multiply
    310,816.79x = 428,926.54 × 174,850.83
  4. Step 4: Simplify right side
    310,816.79x = 74,998,160,653.77
  5. Step 5: Solve for x
    x = 74,998,160,653.77/310,816.79
  6. Step 6: Final answer
    x = 241,293.79

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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.