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Finding the Fourth Proportional to 30,242,238.80, 45,363,358.20 and 30,242,238.80

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Solution

The fourth proportional to 30,242,238.80, 45,363,358.20 and 30,242,238.80 is: 45,363,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,242,238.80 : 45,363,358.20 = 30,242,238.80 : x
  2. Step 2: Convert to fraction form
    30,242,238.80/45,363,358.20 = 30,242,238.80/x
  3. Step 3: Cross multiply
    30,242,238.80x = 45,363,358.20 × 30,242,238.80
  4. Step 4: Simplify right side
    30,242,238.80x = 1,371,889,511,454,338.25
  5. Step 5: Solve for x
    x = 1,371,889,511,454,338.25/30,242,238.80
  6. Step 6: Final answer
    x = 45,363,358.20

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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.