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Finding the Fourth Proportional to 245,479,214.20, 368,218,821.30 and 245,479,214.20

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Solution

The fourth proportional to 245,479,214.20, 368,218,821.30 and 245,479,214.20 is: 368,218,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,479,214.20 : 368,218,821.30 = 245,479,214.20 : x
  2. Step 2: Convert to fraction form
    245,479,214.20/368,218,821.30 = 245,479,214.20/x
  3. Step 3: Cross multiply
    245,479,214.20x = 368,218,821.30 × 245,479,214.20
  4. Step 4: Simplify right side
    245,479,214.20x = 90,390,066,906,374,224
  5. Step 5: Solve for x
    x = 90,390,066,906,374,224/245,479,214.20
  6. Step 6: Final answer
    x = 368,218,821.30

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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.