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Finding the Fourth Proportional to 188,361.19, 259,938.54 and 103,483.72

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Solution

The fourth proportional to 188,361.19, 259,938.54 and 103,483.72 is: 142,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,361.19 : 259,938.54 = 103,483.72 : x
  2. Step 2: Convert to fraction form
    188,361.19/259,938.54 = 103,483.72/x
  3. Step 3: Cross multiply
    188,361.19x = 259,938.54 × 103,483.72
  4. Step 4: Simplify right side
    188,361.19x = 26,899,406,440.72
  5. Step 5: Solve for x
    x = 26,899,406,440.72/188,361.19
  6. Step 6: Final answer
    x = 142,807.59

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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.