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Finding the Fourth Proportional to 352,696.40, 486,725.16 and 191,551.76

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Solution

The fourth proportional to 352,696.40, 486,725.16 and 191,551.76 is: 264,343.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,696.40 : 486,725.16 = 191,551.76 : x
  2. Step 2: Convert to fraction form
    352,696.40/486,725.16 = 191,551.76/x
  3. Step 3: Cross multiply
    352,696.40x = 486,725.16 × 191,551.76
  4. Step 4: Simplify right side
    352,696.40x = 93,233,061,034.28
  5. Step 5: Solve for x
    x = 93,233,061,034.28/352,696.40
  6. Step 6: Final answer
    x = 264,343.67

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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.