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Finding the Fourth Proportional to 219,263.80, 302,584.98 and 118,661.80

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Solution

The fourth proportional to 219,263.80, 302,584.98 and 118,661.80 is: 163,753.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,263.80 : 302,584.98 = 118,661.80 : x
  2. Step 2: Convert to fraction form
    219,263.80/302,584.98 = 118,661.80/x
  3. Step 3: Cross multiply
    219,263.80x = 302,584.98 × 118,661.80
  4. Step 4: Simplify right side
    219,263.80x = 35,905,278,379.76
  5. Step 5: Solve for x
    x = 35,905,278,379.76/219,263.80
  6. Step 6: Final answer
    x = 163,753.79

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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.