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Finding the Fourth Proportional to 370,238.49, 555,379.28 and 104,019.77

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Solution

The fourth proportional to 370,238.49, 555,379.28 and 104,019.77 is: 156,035.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,238.49 : 555,379.28 = 104,019.77 : x
  2. Step 2: Convert to fraction form
    370,238.49/555,379.28 = 104,019.77/x
  3. Step 3: Cross multiply
    370,238.49x = 555,379.28 × 104,019.77
  4. Step 4: Simplify right side
    370,238.49x = 57,770,421,671.37
  5. Step 5: Solve for x
    x = 57,770,421,671.37/370,238.49
  6. Step 6: Final answer
    x = 156,035.70

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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.