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Finding the Fourth Proportional to 189,482.88, 261,486.42 and 104,600

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Solution

The fourth proportional to 189,482.88, 261,486.42 and 104,600 is: 144,348.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,482.88 : 261,486.42 = 104,600 : x
  2. Step 2: Convert to fraction form
    189,482.88/261,486.42 = 104,600/x
  3. Step 3: Cross multiply
    189,482.88x = 261,486.42 × 104,600
  4. Step 4: Simplify right side
    189,482.88x = 27,351,479,532
  5. Step 5: Solve for x
    x = 27,351,479,532/189,482.88
  6. Step 6: Final answer
    x = 144,348.03

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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.