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Finding the Fourth Proportional to 162,147.21, 223,698.72 and 108,347.01

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Solution

The fourth proportional to 162,147.21, 223,698.72 and 108,347.01 is: 149,475.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,147.21 : 223,698.72 = 108,347.01 : x
  2. Step 2: Convert to fraction form
    162,147.21/223,698.72 = 108,347.01/x
  3. Step 3: Cross multiply
    162,147.21x = 223,698.72 × 108,347.01
  4. Step 4: Simplify right side
    162,147.21x = 24,237,087,452.83
  5. Step 5: Solve for x
    x = 24,237,087,452.83/162,147.21
  6. Step 6: Final answer
    x = 149,475.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.