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Finding the Fourth Proportional to 140,945,703.20, 197,777,480.80 and 140,945,703.20

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Solution

The fourth proportional to 140,945,703.20, 197,777,480.80 and 140,945,703.20 is: 197,777,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,945,703.20 : 197,777,480.80 = 140,945,703.20 : x
  2. Step 2: Convert to fraction form
    140,945,703.20/197,777,480.80 = 140,945,703.20/x
  3. Step 3: Cross multiply
    140,945,703.20x = 197,777,480.80 × 140,945,703.20
  4. Step 4: Simplify right side
    140,945,703.20x = 27,875,886,108,480,496
  5. Step 5: Solve for x
    x = 27,875,886,108,480,496/140,945,703.20
  6. Step 6: Final answer
    x = 197,777,480.80

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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.