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Finding the Fourth Proportional to 79,643.94, 109,890.99 and 46,090.50

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Solution

The fourth proportional to 79,643.94, 109,890.99 and 46,090.50 is: 63,594.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,643.94 : 109,890.99 = 46,090.50 : x
  2. Step 2: Convert to fraction form
    79,643.94/109,890.99 = 46,090.50/x
  3. Step 3: Cross multiply
    79,643.94x = 109,890.99 × 46,090.50
  4. Step 4: Simplify right side
    79,643.94x = 5,064,930,674.60
  5. Step 5: Solve for x
    x = 5,064,930,674.60/79,643.94
  6. Step 6: Final answer
    x = 63,594.68

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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.