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Finding the Fourth Proportional to 83,042.88, 124,516.44 and 56,779.44

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Solution

The fourth proportional to 83,042.88, 124,516.44 and 56,779.44 is: 85,136.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,042.88 : 124,516.44 = 56,779.44 : x
  2. Step 2: Convert to fraction form
    83,042.88/124,516.44 = 56,779.44/x
  3. Step 3: Cross multiply
    83,042.88x = 124,516.44 × 56,779.44
  4. Step 4: Simplify right side
    83,042.88x = 7,069,973,733.99
  5. Step 5: Solve for x
    x = 7,069,973,733.99/83,042.88
  6. Step 6: Final answer
    x = 85,136.42

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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.