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Finding the Fourth Proportional to 243,603.73, 336,241.07 and 167,135.28

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Solution

The fourth proportional to 243,603.73, 336,241.07 and 167,135.28 is: 230,693.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,603.73 : 336,241.07 = 167,135.28 : x
  2. Step 2: Convert to fraction form
    243,603.73/336,241.07 = 167,135.28/x
  3. Step 3: Cross multiply
    243,603.73x = 336,241.07 × 167,135.28
  4. Step 4: Simplify right side
    243,603.73x = 56,197,742,865.07
  5. Step 5: Solve for x
    x = 56,197,742,865.07/243,603.73
  6. Step 6: Final answer
    x = 230,693.28

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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.