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Finding the Fourth Proportional to 77,993,900.94, 107,743,696.62 and 62,292,310.40

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Solution

The fourth proportional to 77,993,900.94, 107,743,696.62 and 62,292,310.40 is: 86,052,931.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,993,900.94 : 107,743,696.62 = 62,292,310.40 : x
  2. Step 2: Convert to fraction form
    77,993,900.94/107,743,696.62 = 62,292,310.40/x
  3. Step 3: Cross multiply
    77,993,900.94x = 107,743,696.62 × 62,292,310.40
  4. Step 4: Simplify right side
    77,993,900.94x = 6,711,603,793,496,471
  5. Step 5: Solve for x
    x = 6,711,603,793,496,471/77,993,900.94
  6. Step 6: Final answer
    x = 86,052,931.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.