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Finding the Fourth Proportional to 366,525.76, 549,616.10 and 141,991.34

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Solution

The fourth proportional to 366,525.76, 549,616.10 and 141,991.34 is: 212,920.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,525.76 : 549,616.10 = 141,991.34 : x
  2. Step 2: Convert to fraction form
    366,525.76/549,616.10 = 141,991.34/x
  3. Step 3: Cross multiply
    366,525.76x = 549,616.10 × 141,991.34
  4. Step 4: Simplify right side
    366,525.76x = 78,040,726,524.57
  5. Step 5: Solve for x
    x = 78,040,726,524.57/366,525.76
  6. Step 6: Final answer
    x = 212,920.17

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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.