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Finding the Fourth Proportional to 189,541.77, 261,560.79 and 104,657.01

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Solution

The fourth proportional to 189,541.77, 261,560.79 and 104,657.01 is: 144,422.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,541.77 : 261,560.79 = 104,657.01 : x
  2. Step 2: Convert to fraction form
    189,541.77/261,560.79 = 104,657.01/x
  3. Step 3: Cross multiply
    189,541.77x = 261,560.79 × 104,657.01
  4. Step 4: Simplify right side
    189,541.77x = 27,374,170,214.64
  5. Step 5: Solve for x
    x = 27,374,170,214.64/189,541.77
  6. Step 6: Final answer
    x = 144,422.89

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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.