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Finding the Fourth Proportional to 94,783,277.80, 142,174,916.70 and 84,012,740.20

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Solution

The fourth proportional to 94,783,277.80, 142,174,916.70 and 84,012,740.20 is: 126,019,110.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,783,277.80 : 142,174,916.70 = 84,012,740.20 : x
  2. Step 2: Convert to fraction form
    94,783,277.80/142,174,916.70 = 84,012,740.20/x
  3. Step 3: Cross multiply
    94,783,277.80x = 142,174,916.70 × 84,012,740.20
  4. Step 4: Simplify right side
    94,783,277.80x = 11,944,504,339,673,740
  5. Step 5: Solve for x
    x = 11,944,504,339,673,740/94,783,277.80
  6. Step 6: Final answer
    x = 126,019,110.30

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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.