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Finding the Fourth Proportional to 140,940,331.20, 197,518,017.60 and 140,940,331.20

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Solution

The fourth proportional to 140,940,331.20, 197,518,017.60 and 140,940,331.20 is: 197,518,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,940,331.20 : 197,518,017.60 = 140,940,331.20 : x
  2. Step 2: Convert to fraction form
    140,940,331.20/197,518,017.60 = 140,940,331.20/x
  3. Step 3: Cross multiply
    140,940,331.20x = 197,518,017.60 × 140,940,331.20
  4. Step 4: Simplify right side
    140,940,331.20x = 27,838,254,818,511,424
  5. Step 5: Solve for x
    x = 27,838,254,818,511,424/140,940,331.20
  6. Step 6: Final answer
    x = 197,518,017.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.