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Finding the Fourth Proportional to 366,678.11, 550,017.62 and 100,440.93

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Solution

The fourth proportional to 366,678.11, 550,017.62 and 100,440.93 is: 150,661.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,678.11 : 550,017.62 = 100,440.93 : x
  2. Step 2: Convert to fraction form
    366,678.11/550,017.62 = 100,440.93/x
  3. Step 3: Cross multiply
    366,678.11x = 550,017.62 × 100,440.93
  4. Step 4: Simplify right side
    366,678.11x = 55,244,281,269.19
  5. Step 5: Solve for x
    x = 55,244,281,269.19/366,678.11
  6. Step 6: Final answer
    x = 150,661.52

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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.