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Finding the Fourth Proportional to 180,396.17, 248,973.12 and 103,900.56

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Solution

The fourth proportional to 180,396.17, 248,973.12 and 103,900.56 is: 143,397.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,396.17 : 248,973.12 = 103,900.56 : x
  2. Step 2: Convert to fraction form
    180,396.17/248,973.12 = 103,900.56/x
  3. Step 3: Cross multiply
    180,396.17x = 248,973.12 × 103,900.56
  4. Step 4: Simplify right side
    180,396.17x = 25,868,446,592.95
  5. Step 5: Solve for x
    x = 25,868,446,592.95/180,396.17
  6. Step 6: Final answer
    x = 143,397.98

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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.