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Finding the Fourth Proportional to 219,336.61, 302,684.16 and 118,734.61

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Solution

The fourth proportional to 219,336.61, 302,684.16 and 118,734.61 is: 163,853.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,336.61 : 302,684.16 = 118,734.61 : x
  2. Step 2: Convert to fraction form
    219,336.61/302,684.16 = 118,734.61/x
  3. Step 3: Cross multiply
    219,336.61x = 302,684.16 × 118,734.61
  4. Step 4: Simplify right side
    219,336.61x = 35,939,085,690.78
  5. Step 5: Solve for x
    x = 35,939,085,690.78/219,336.61
  6. Step 6: Final answer
    x = 163,853.57

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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.