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Finding the Fourth Proportional to 155,661.20, 233,491.80 and 116,493.20

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Solution

The fourth proportional to 155,661.20, 233,491.80 and 116,493.20 is: 174,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,661.20 : 233,491.80 = 116,493.20 : x
  2. Step 2: Convert to fraction form
    155,661.20/233,491.80 = 116,493.20/x
  3. Step 3: Cross multiply
    155,661.20x = 233,491.80 × 116,493.20
  4. Step 4: Simplify right side
    155,661.20x = 27,200,206,955.76
  5. Step 5: Solve for x
    x = 27,200,206,955.76/155,661.20
  6. Step 6: Final answer
    x = 174,739.80

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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.