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Finding the Fourth Proportional to 79,595.51, 109,779.53 and 49,363.74

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Solution

The fourth proportional to 79,595.51, 109,779.53 and 49,363.74 is: 68,083.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,595.51 : 109,779.53 = 49,363.74 : x
  2. Step 2: Convert to fraction form
    79,595.51/109,779.53 = 49,363.74/x
  3. Step 3: Cross multiply
    79,595.51x = 109,779.53 × 49,363.74
  4. Step 4: Simplify right side
    79,595.51x = 5,419,127,929.42
  5. Step 5: Solve for x
    x = 5,419,127,929.42/79,595.51
  6. Step 6: Final answer
    x = 68,083.34

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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.