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Finding the Fourth Proportional to 57,409,880.40, 86,131,409.40 and 17,021,336.40

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Solution

The fourth proportional to 57,409,880.40, 86,131,409.40 and 17,021,336.40 is: 25,536,922.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,409,880.40 : 86,131,409.40 = 17,021,336.40 : x
  2. Step 2: Convert to fraction form
    57,409,880.40/86,131,409.40 = 17,021,336.40/x
  3. Step 3: Cross multiply
    57,409,880.40x = 86,131,409.40 × 17,021,336.40
  4. Step 4: Simplify right side
    57,409,880.40x = 1,466,071,694,003,522.25
  5. Step 5: Solve for x
    x = 1,466,071,694,003,522.25/57,409,880.40
  6. Step 6: Final answer
    x = 25,536,922.98

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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.