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Finding the Fourth Proportional to 119,779.44, 165,303.18 and 68,808.12

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Solution

The fourth proportional to 119,779.44, 165,303.18 and 68,808.12 is: 94,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,779.44 : 165,303.18 = 68,808.12 : x
  2. Step 2: Convert to fraction form
    119,779.44/165,303.18 = 68,808.12/x
  3. Step 3: Cross multiply
    119,779.44x = 165,303.18 × 68,808.12
  4. Step 4: Simplify right side
    119,779.44x = 11,374,201,045.82
  5. Step 5: Solve for x
    x = 11,374,201,045.82/119,779.44
  6. Step 6: Final answer
    x = 94,959.54

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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.