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Finding the Fourth Proportional to 56,762.94, 85,020.39 and 46,790.22

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Solution

The fourth proportional to 56,762.94, 85,020.39 and 46,790.22 is: 70,083.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,762.94 : 85,020.39 = 46,790.22 : x
  2. Step 2: Convert to fraction form
    56,762.94/85,020.39 = 46,790.22/x
  3. Step 3: Cross multiply
    56,762.94x = 85,020.39 × 46,790.22
  4. Step 4: Simplify right side
    56,762.94x = 3,978,122,752.59
  5. Step 5: Solve for x
    x = 3,978,122,752.59/56,762.94
  6. Step 6: Final answer
    x = 70,083.10

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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.