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Finding the Fourth Proportional to 104,661.45, 144,428.40 and 59,342.49

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Solution

The fourth proportional to 104,661.45, 144,428.40 and 59,342.49 is: 81,890.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,661.45 : 144,428.40 = 59,342.49 : x
  2. Step 2: Convert to fraction form
    104,661.45/144,428.40 = 59,342.49/x
  3. Step 3: Cross multiply
    104,661.45x = 144,428.40 × 59,342.49
  4. Step 4: Simplify right side
    104,661.45x = 8,570,740,882.72
  5. Step 5: Solve for x
    x = 8,570,740,882.72/104,661.45
  6. Step 6: Final answer
    x = 81,890.14

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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.