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Finding the Fourth Proportional to 189,477.51, 261,478.71 and 104,594.37

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Solution

The fourth proportional to 189,477.51, 261,478.71 and 104,594.37 is: 144,340.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,477.51 : 261,478.71 = 104,594.37 : x
  2. Step 2: Convert to fraction form
    189,477.51/261,478.71 = 104,594.37/x
  3. Step 3: Cross multiply
    189,477.51x = 261,478.71 × 104,594.37
  4. Step 4: Simplify right side
    189,477.51x = 27,349,200,940.86
  5. Step 5: Solve for x
    x = 27,349,200,940.86/189,477.51
  6. Step 6: Final answer
    x = 144,340.09

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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.