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Finding the Fourth Proportional to 171,949,907.80, 257,924,861.70 and 114,554,279.80

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Solution

The fourth proportional to 171,949,907.80, 257,924,861.70 and 114,554,279.80 is: 171,831,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,949,907.80 : 257,924,861.70 = 114,554,279.80 : x
  2. Step 2: Convert to fraction form
    171,949,907.80/257,924,861.70 = 114,554,279.80/x
  3. Step 3: Cross multiply
    171,949,907.80x = 257,924,861.70 × 114,554,279.80
  4. Step 4: Simplify right side
    171,949,907.80x = 29,546,396,774,558,100
  5. Step 5: Solve for x
    x = 29,546,396,774,558,100/171,949,907.80
  6. Step 6: Final answer
    x = 171,831,419.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.