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Finding the Fourth Proportional to 557,678.40, 836,520.39 and 136,954.32

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Solution

The fourth proportional to 557,678.40, 836,520.39 and 136,954.32 is: 205,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,678.40 : 836,520.39 = 136,954.32 : x
  2. Step 2: Convert to fraction form
    557,678.40/836,520.39 = 136,954.32/x
  3. Step 3: Cross multiply
    557,678.40x = 836,520.39 × 136,954.32
  4. Step 4: Simplify right side
    557,678.40x = 114,565,081,178.59
  5. Step 5: Solve for x
    x = 114,565,081,178.59/557,678.40
  6. Step 6: Final answer
    x = 205,432.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.