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Finding the Fourth Proportional to 191,966.30, 265,009.41 and 119,392.59

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Solution

The fourth proportional to 191,966.30, 265,009.41 and 119,392.59 is: 164,821.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,966.30 : 265,009.41 = 119,392.59 : x
  2. Step 2: Convert to fraction form
    191,966.30/265,009.41 = 119,392.59/x
  3. Step 3: Cross multiply
    191,966.30x = 265,009.41 × 119,392.59
  4. Step 4: Simplify right side
    191,966.30x = 31,640,159,237.31
  5. Step 5: Solve for x
    x = 31,640,159,237.31/191,966.30
  6. Step 6: Final answer
    x = 164,821.43

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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.