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Finding the Fourth Proportional to 445,765.60, 668,750.39 and 193,088.16

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Solution

The fourth proportional to 445,765.60, 668,750.39 and 193,088.16 is: 289,676.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,765.60 : 668,750.39 = 193,088.16 : x
  2. Step 2: Convert to fraction form
    445,765.60/668,750.39 = 193,088.16/x
  3. Step 3: Cross multiply
    445,765.60x = 668,750.39 × 193,088.16
  4. Step 4: Simplify right side
    445,765.60x = 129,127,782,304.38
  5. Step 5: Solve for x
    x = 129,127,782,304.38/445,765.60
  6. Step 6: Final answer
    x = 289,676.42

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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.