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Finding the Fourth Proportional to 367,603.80, 551,405.70 and 101,405.40

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Solution

The fourth proportional to 367,603.80, 551,405.70 and 101,405.40 is: 152,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,603.80 : 551,405.70 = 101,405.40 : x
  2. Step 2: Convert to fraction form
    367,603.80/551,405.70 = 101,405.40/x
  3. Step 3: Cross multiply
    367,603.80x = 551,405.70 × 101,405.40
  4. Step 4: Simplify right side
    367,603.80x = 55,915,515,570.78
  5. Step 5: Solve for x
    x = 55,915,515,570.78/367,603.80
  6. Step 6: Final answer
    x = 152,108.10

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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.