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Finding the Fourth Proportional to 245,315.20, 367,924.20 and 118,955.20

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Solution

The fourth proportional to 245,315.20, 367,924.20 and 118,955.20 is: 178,409.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,315.20 : 367,924.20 = 118,955.20 : x
  2. Step 2: Convert to fraction form
    245,315.20/367,924.20 = 118,955.20/x
  3. Step 3: Cross multiply
    245,315.20x = 367,924.20 × 118,955.20
  4. Step 4: Simplify right side
    245,315.20x = 43,766,496,795.84
  5. Step 5: Solve for x
    x = 43,766,496,795.84/245,315.20
  6. Step 6: Final answer
    x = 178,409.23

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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.