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Finding the Fourth Proportional to 202,992.67, 304,509.46 and 69,855.40

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Solution

The fourth proportional to 202,992.67, 304,509.46 and 69,855.40 is: 104,790.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,992.67 : 304,509.46 = 69,855.40 : x
  2. Step 2: Convert to fraction form
    202,992.67/304,509.46 = 69,855.40/x
  3. Step 3: Cross multiply
    202,992.67x = 304,509.46 × 69,855.40
  4. Step 4: Simplify right side
    202,992.67x = 21,271,630,132.08
  5. Step 5: Solve for x
    x = 21,271,630,132.08/202,992.67
  6. Step 6: Final answer
    x = 104,790.14

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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.