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Finding the Fourth Proportional to 121,405.70, 182,022.15 and 46,496.90

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Solution

The fourth proportional to 121,405.70, 182,022.15 and 46,496.90 is: 69,712.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,405.70 : 182,022.15 = 46,496.90 : x
  2. Step 2: Convert to fraction form
    121,405.70/182,022.15 = 46,496.90/x
  3. Step 3: Cross multiply
    121,405.70x = 182,022.15 × 46,496.90
  4. Step 4: Simplify right side
    121,405.70x = 8,463,465,706.34
  5. Step 5: Solve for x
    x = 8,463,465,706.34/121,405.70
  6. Step 6: Final answer
    x = 69,712.26

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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.