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Finding the Fourth Proportional to 69,656.82, 104,423.26 and 30,192.40

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Solution

The fourth proportional to 69,656.82, 104,423.26 and 30,192.40 is: 45,261.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,656.82 : 104,423.26 = 30,192.40 : x
  2. Step 2: Convert to fraction form
    69,656.82/104,423.26 = 30,192.40/x
  3. Step 3: Cross multiply
    69,656.82x = 104,423.26 × 30,192.40
  4. Step 4: Simplify right side
    69,656.82x = 3,152,788,684.26
  5. Step 5: Solve for x
    x = 3,152,788,684.26/69,656.82
  6. Step 6: Final answer
    x = 45,261.74

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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.