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Finding the Fourth Proportional to 290,560.55, 435,771.44 and 122,084.06

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Solution

The fourth proportional to 290,560.55, 435,771.44 and 122,084.06 is: 183,096.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,560.55 : 435,771.44 = 122,084.06 : x
  2. Step 2: Convert to fraction form
    290,560.55/435,771.44 = 122,084.06/x
  3. Step 3: Cross multiply
    290,560.55x = 435,771.44 × 122,084.06
  4. Step 4: Simplify right side
    290,560.55x = 53,200,746,016.83
  5. Step 5: Solve for x
    x = 53,200,746,016.83/290,560.55
  6. Step 6: Final answer
    x = 183,096.93

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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.