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Finding the Fourth Proportional to 163,912.40, 245,868.60 and 53,104.40

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Solution

The fourth proportional to 163,912.40, 245,868.60 and 53,104.40 is: 79,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,912.40 : 245,868.60 = 53,104.40 : x
  2. Step 2: Convert to fraction form
    163,912.40/245,868.60 = 53,104.40/x
  3. Step 3: Cross multiply
    163,912.40x = 245,868.60 × 53,104.40
  4. Step 4: Simplify right side
    163,912.40x = 13,056,704,481.84
  5. Step 5: Solve for x
    x = 13,056,704,481.84/163,912.40
  6. Step 6: Final answer
    x = 79,656.60

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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.