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Finding the Fourth Proportional to 221,325,351.30, 331,390,830.15 and 221,325,351.30

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Solution

The fourth proportional to 221,325,351.30, 331,390,830.15 and 221,325,351.30 is: 331,390,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,325,351.30 : 331,390,830.15 = 221,325,351.30 : x
  2. Step 2: Convert to fraction form
    221,325,351.30/331,390,830.15 = 221,325,351.30/x
  3. Step 3: Cross multiply
    221,325,351.30x = 331,390,830.15 × 221,325,351.30
  4. Step 4: Simplify right side
    221,325,351.30x = 73,345,191,900,547,376
  5. Step 5: Solve for x
    x = 73,345,191,900,547,376/221,325,351.30
  6. Step 6: Final answer
    x = 331,390,830.15

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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.