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Finding the Fourth Proportional to 171,771,258.90, 239,969,579.10 and 171,771,258.90

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Solution

The fourth proportional to 171,771,258.90, 239,969,579.10 and 171,771,258.90 is: 239,969,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,771,258.90 : 239,969,579.10 = 171,771,258.90 : x
  2. Step 2: Convert to fraction form
    171,771,258.90/239,969,579.10 = 171,771,258.90/x
  3. Step 3: Cross multiply
    171,771,258.90x = 239,969,579.10 × 171,771,258.90
  4. Step 4: Simplify right side
    171,771,258.90x = 41,219,876,699,710,128
  5. Step 5: Solve for x
    x = 41,219,876,699,710,128/171,771,258.90
  6. Step 6: Final answer
    x = 239,969,579.10

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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.