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Finding the Fourth Proportional to 106,562,958.40, 149,339,307.20 and 106,562,958.40

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Solution

The fourth proportional to 106,562,958.40, 149,339,307.20 and 106,562,958.40 is: 149,339,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,562,958.40 : 149,339,307.20 = 106,562,958.40 : x
  2. Step 2: Convert to fraction form
    106,562,958.40/149,339,307.20 = 106,562,958.40/x
  3. Step 3: Cross multiply
    106,562,958.40x = 149,339,307.20 × 106,562,958.40
  4. Step 4: Simplify right side
    106,562,958.40x = 15,914,038,380,638,420
  5. Step 5: Solve for x
    x = 15,914,038,380,638,420/106,562,958.40
  6. Step 6: Final answer
    x = 149,339,307.20

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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.