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Finding the Fourth Proportional to 189,436.80, 284,308.80 and 183,292.80

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Solution

The fourth proportional to 189,436.80, 284,308.80 and 183,292.80 is: 275,087.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,436.80 : 284,308.80 = 183,292.80 : x
  2. Step 2: Convert to fraction form
    189,436.80/284,308.80 = 183,292.80/x
  3. Step 3: Cross multiply
    189,436.80x = 284,308.80 × 183,292.80
  4. Step 4: Simplify right side
    189,436.80x = 52,111,756,016.64
  5. Step 5: Solve for x
    x = 52,111,756,016.64/189,436.80
  6. Step 6: Final answer
    x = 275,087.82

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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.