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Finding the Fourth Proportional to 249,696.64, 344,496.96 and 142,190.44

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Solution

The fourth proportional to 249,696.64, 344,496.96 and 142,190.44 is: 196,174.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,696.64 : 344,496.96 = 142,190.44 : x
  2. Step 2: Convert to fraction form
    249,696.64/344,496.96 = 142,190.44/x
  3. Step 3: Cross multiply
    249,696.64x = 344,496.96 × 142,190.44
  4. Step 4: Simplify right side
    249,696.64x = 48,984,174,321.06
  5. Step 5: Solve for x
    x = 48,984,174,321.06/249,696.64
  6. Step 6: Final answer
    x = 196,174.74

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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.