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Finding the Fourth Proportional to 213,519.76, 294,644.46 and 118,020.76

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Solution

The fourth proportional to 213,519.76, 294,644.46 and 118,020.76 is: 162,861.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,519.76 : 294,644.46 = 118,020.76 : x
  2. Step 2: Convert to fraction form
    213,519.76/294,644.46 = 118,020.76/x
  3. Step 3: Cross multiply
    213,519.76x = 294,644.46 × 118,020.76
  4. Step 4: Simplify right side
    213,519.76x = 34,774,163,098.99
  5. Step 5: Solve for x
    x = 34,774,163,098.99/213,519.76
  6. Step 6: Final answer
    x = 162,861.57

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1.5x scale

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.