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Finding the Fourth Proportional to 249,211, 343,791.42 and 163,132.03

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Solution

The fourth proportional to 249,211, 343,791.42 and 163,132.03 is: 225,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,211 : 343,791.42 = 163,132.03 : x
  2. Step 2: Convert to fraction form
    249,211/343,791.42 = 163,132.03/x
  3. Step 3: Cross multiply
    249,211x = 343,791.42 × 163,132.03
  4. Step 4: Simplify right side
    249,211x = 56,083,392,241.18
  5. Step 5: Solve for x
    x = 56,083,392,241.18/249,211
  6. Step 6: Final answer
    x = 225,043.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.