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Finding the Fourth Proportional to 71,697,911.70, 107,546,703.48 and 30,730,787.13

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Solution

The fourth proportional to 71,697,911.70, 107,546,703.48 and 30,730,787.13 is: 46,096,110.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,697,911.70 : 107,546,703.48 = 30,730,787.13 : x
  2. Step 2: Convert to fraction form
    71,697,911.70/107,546,703.48 = 30,730,787.13/x
  3. Step 3: Cross multiply
    71,697,911.70x = 107,546,703.48 × 30,730,787.13
  4. Step 4: Simplify right side
    71,697,911.70x = 3,304,994,851,177,110
  5. Step 5: Solve for x
    x = 3,304,994,851,177,110/71,697,911.70
  6. Step 6: Final answer
    x = 46,096,110.37

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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.