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Finding the Fourth Proportional to 171,771,427.90, 239,969,815.70 and 171,771,427.90

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Solution

The fourth proportional to 171,771,427.90, 239,969,815.70 and 171,771,427.90 is: 239,969,815.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,771,427.90 : 239,969,815.70 = 171,771,427.90 : x
  2. Step 2: Convert to fraction form
    171,771,427.90/239,969,815.70 = 171,771,427.90/x
  3. Step 3: Cross multiply
    171,771,427.90x = 239,969,815.70 × 171,771,427.90
  4. Step 4: Simplify right side
    171,771,427.90x = 41,219,957,895,688,840
  5. Step 5: Solve for x
    x = 41,219,957,895,688,840/171,771,427.90
  6. Step 6: Final answer
    x = 239,969,815.70

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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.