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Finding the Fourth Proportional to 173,843,138.80, 243,738,712.40 and 173,843,138.80

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Solution

The fourth proportional to 173,843,138.80, 243,738,712.40 and 173,843,138.80 is: 243,738,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,843,138.80 : 243,738,712.40 = 173,843,138.80 : x
  2. Step 2: Convert to fraction form
    173,843,138.80/243,738,712.40 = 173,843,138.80/x
  3. Step 3: Cross multiply
    173,843,138.80x = 243,738,712.40 × 173,843,138.80
  4. Step 4: Simplify right side
    173,843,138.80x = 42,372,302,810,686,488
  5. Step 5: Solve for x
    x = 42,372,302,810,686,488/173,843,138.80
  6. Step 6: Final answer
    x = 243,738,712.40

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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.