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Finding the Fourth Proportional to 104,514.91, 144,231.74 and 61,503.91

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Solution

The fourth proportional to 104,514.91, 144,231.74 and 61,503.91 is: 84,876.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,514.91 : 144,231.74 = 61,503.91 : x
  2. Step 2: Convert to fraction form
    104,514.91/144,231.74 = 61,503.91/x
  3. Step 3: Cross multiply
    104,514.91x = 144,231.74 × 61,503.91
  4. Step 4: Simplify right side
    104,514.91x = 8,870,815,518.64
  5. Step 5: Solve for x
    x = 8,870,815,518.64/104,514.91
  6. Step 6: Final answer
    x = 84,876.08

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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.