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Finding the Fourth Proportional to 264,905.20, 397,357.80 and 236,036.80

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Solution

The fourth proportional to 264,905.20, 397,357.80 and 236,036.80 is: 354,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,905.20 : 397,357.80 = 236,036.80 : x
  2. Step 2: Convert to fraction form
    264,905.20/397,357.80 = 236,036.80/x
  3. Step 3: Cross multiply
    264,905.20x = 397,357.80 × 236,036.80
  4. Step 4: Simplify right side
    264,905.20x = 93,791,063,567.04
  5. Step 5: Solve for x
    x = 93,791,063,567.04/264,905.20
  6. Step 6: Final answer
    x = 354,055.20

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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.