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Finding the Fourth Proportional to 163,722.34, 245,583.52 and 45,393.69

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Solution

The fourth proportional to 163,722.34, 245,583.52 and 45,393.69 is: 68,090.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,722.34 : 245,583.52 = 45,393.69 : x
  2. Step 2: Convert to fraction form
    163,722.34/245,583.52 = 45,393.69/x
  3. Step 3: Cross multiply
    163,722.34x = 245,583.52 × 45,393.69
  4. Step 4: Simplify right side
    163,722.34x = 11,147,940,948.07
  5. Step 5: Solve for x
    x = 11,147,940,948.07/163,722.34
  6. Step 6: Final answer
    x = 68,090.53

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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.