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Finding the Fourth Proportional to 234,638.46, 324,068.36 and 159,055.74

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Solution

The fourth proportional to 234,638.46, 324,068.36 and 159,055.74 is: 219,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,638.46 : 324,068.36 = 159,055.74 : x
  2. Step 2: Convert to fraction form
    234,638.46/324,068.36 = 159,055.74/x
  3. Step 3: Cross multiply
    234,638.46x = 324,068.36 × 159,055.74
  4. Step 4: Simplify right side
    234,638.46x = 51,544,932,015.11
  5. Step 5: Solve for x
    x = 51,544,932,015.11/234,638.46
  6. Step 6: Final answer
    x = 219,678.10

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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.