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Finding the Fourth Proportional to 180,936.52, 249,696.40 and 100,361.42

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Solution

The fourth proportional to 180,936.52, 249,696.40 and 100,361.42 is: 138,500.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,936.52 : 249,696.40 = 100,361.42 : x
  2. Step 2: Convert to fraction form
    180,936.52/249,696.40 = 100,361.42/x
  3. Step 3: Cross multiply
    180,936.52x = 249,696.40 × 100,361.42
  4. Step 4: Simplify right side
    180,936.52x = 25,059,885,272.89
  5. Step 5: Solve for x
    x = 25,059,885,272.89/180,936.52
  6. Step 6: Final answer
    x = 138,500.98

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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.