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Finding the Fourth Proportional to 219,276.78, 302,601.96 and 118,674.78

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Solution

The fourth proportional to 219,276.78, 302,601.96 and 118,674.78 is: 163,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,276.78 : 302,601.96 = 118,674.78 : x
  2. Step 2: Convert to fraction form
    219,276.78/302,601.96 = 118,674.78/x
  3. Step 3: Cross multiply
    219,276.78x = 302,601.96 × 118,674.78
  4. Step 4: Simplify right side
    219,276.78x = 35,911,221,030.57
  5. Step 5: Solve for x
    x = 35,911,221,030.57/219,276.78
  6. Step 6: Final answer
    x = 163,771.20

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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.