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Finding the Fourth Proportional to 183,436.80, 275,155.20 and 155,443.20

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Solution

The fourth proportional to 183,436.80, 275,155.20 and 155,443.20 is: 233,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,436.80 : 275,155.20 = 155,443.20 : x
  2. Step 2: Convert to fraction form
    183,436.80/275,155.20 = 155,443.20/x
  3. Step 3: Cross multiply
    183,436.80x = 275,155.20 × 155,443.20
  4. Step 4: Simplify right side
    183,436.80x = 42,771,004,784.64
  5. Step 5: Solve for x
    x = 42,771,004,784.64/183,436.80
  6. Step 6: Final answer
    x = 233,164.80

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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.