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Finding the Fourth Proportional to 163,281.40, 244,922.10 and 69,969.40

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Solution

The fourth proportional to 163,281.40, 244,922.10 and 69,969.40 is: 104,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,281.40 : 244,922.10 = 69,969.40 : x
  2. Step 2: Convert to fraction form
    163,281.40/244,922.10 = 69,969.40/x
  3. Step 3: Cross multiply
    163,281.40x = 244,922.10 × 69,969.40
  4. Step 4: Simplify right side
    163,281.40x = 17,137,052,383.74
  5. Step 5: Solve for x
    x = 17,137,052,383.74/163,281.40
  6. Step 6: Final answer
    x = 104,954.10

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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.