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Finding the Fourth Proportional to 212,806.80, 293,675.46 and 117,316.92

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Solution

The fourth proportional to 212,806.80, 293,675.46 and 117,316.92 is: 161,898.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,806.80 : 293,675.46 = 117,316.92 : x
  2. Step 2: Convert to fraction form
    212,806.80/293,675.46 = 117,316.92/x
  3. Step 3: Cross multiply
    212,806.80x = 293,675.46 × 117,316.92
  4. Step 4: Simplify right side
    212,806.80x = 34,453,100,446.78
  5. Step 5: Solve for x
    x = 34,453,100,446.78/212,806.80
  6. Step 6: Final answer
    x = 161,898.49

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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.