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Finding the Fourth Proportional to 189,590.49, 261,612.59 and 104,702.49

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Solution

The fourth proportional to 189,590.49, 261,612.59 and 104,702.49 is: 144,477.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,590.49 : 261,612.59 = 104,702.49 : x
  2. Step 2: Convert to fraction form
    189,590.49/261,612.59 = 104,702.49/x
  3. Step 3: Cross multiply
    189,590.49x = 261,612.59 × 104,702.49
  4. Step 4: Simplify right side
    189,590.49x = 27,391,489,064.84
  5. Step 5: Solve for x
    x = 27,391,489,064.84/189,590.49
  6. Step 6: Final answer
    x = 144,477.13

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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.