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Finding the Fourth Proportional to 168,779.08, 232,942.40 and 97,143.90

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Solution

The fourth proportional to 168,779.08, 232,942.40 and 97,143.90 is: 134,074.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,779.08 : 232,942.40 = 97,143.90 : x
  2. Step 2: Convert to fraction form
    168,779.08/232,942.40 = 97,143.90/x
  3. Step 3: Cross multiply
    168,779.08x = 232,942.40 × 97,143.90
  4. Step 4: Simplify right side
    168,779.08x = 22,628,933,211.36
  5. Step 5: Solve for x
    x = 22,628,933,211.36/168,779.08
  6. Step 6: Final answer
    x = 134,074.28

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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.