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Finding the Fourth Proportional to 329,862.60, 494,696.70 and 130,116.60

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Solution

The fourth proportional to 329,862.60, 494,696.70 and 130,116.60 is: 195,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,862.60 : 494,696.70 = 130,116.60 : x
  2. Step 2: Convert to fraction form
    329,862.60/494,696.70 = 130,116.60/x
  3. Step 3: Cross multiply
    329,862.60x = 494,696.70 × 130,116.60
  4. Step 4: Simplify right side
    329,862.60x = 64,368,252,635.22
  5. Step 5: Solve for x
    x = 64,368,252,635.22/329,862.60
  6. Step 6: Final answer
    x = 195,136.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.