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Finding the Fourth Proportional to 94,643,406.80, 142,028,095.80 and 53,702,766.80

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Solution

The fourth proportional to 94,643,406.80, 142,028,095.80 and 53,702,766.80 is: 80,589,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,643,406.80 : 142,028,095.80 = 53,702,766.80 : x
  2. Step 2: Convert to fraction form
    94,643,406.80/142,028,095.80 = 53,702,766.80/x
  3. Step 3: Cross multiply
    94,643,406.80x = 142,028,095.80 × 53,702,766.80
  4. Step 4: Simplify right side
    94,643,406.80x = 7,627,301,707,795,460
  5. Step 5: Solve for x
    x = 7,627,301,707,795,460/94,643,406.80
  6. Step 6: Final answer
    x = 80,589,889.63

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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.