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Finding the Fourth Proportional to 333,765.12, 500,661.50 and 97,107.80

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Solution

The fourth proportional to 333,765.12, 500,661.50 and 97,107.80 is: 145,665.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,765.12 : 500,661.50 = 97,107.80 : x
  2. Step 2: Convert to fraction form
    333,765.12/500,661.50 = 97,107.80/x
  3. Step 3: Cross multiply
    333,765.12x = 500,661.50 × 97,107.80
  4. Step 4: Simplify right side
    333,765.12x = 48,618,135,158.03
  5. Step 5: Solve for x
    x = 48,618,135,158.03/333,765.12
  6. Step 6: Final answer
    x = 145,665.72

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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.