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Finding the Fourth Proportional to 219,314.56, 302,653.76 and 118,712.96

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Solution

The fourth proportional to 219,314.56, 302,653.76 and 118,712.96 is: 163,823.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,314.56 : 302,653.76 = 118,712.96 : x
  2. Step 2: Convert to fraction form
    219,314.56/302,653.76 = 118,712.96/x
  3. Step 3: Cross multiply
    219,314.56x = 302,653.76 × 118,712.96
  4. Step 4: Simplify right side
    219,314.56x = 35,928,923,704.73
  5. Step 5: Solve for x
    x = 35,928,923,704.73/219,314.56
  6. Step 6: Final answer
    x = 163,823.70

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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.