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Finding the Fourth Proportional to 79,784.61, 119,650.59 and 26,464.34

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Solution

The fourth proportional to 79,784.61, 119,650.59 and 26,464.34 is: 39,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,784.61 : 119,650.59 = 26,464.34 : x
  2. Step 2: Convert to fraction form
    79,784.61/119,650.59 = 26,464.34/x
  3. Step 3: Cross multiply
    79,784.61x = 119,650.59 × 26,464.34
  4. Step 4: Simplify right side
    79,784.61x = 3,166,473,296.71
  5. Step 5: Solve for x
    x = 3,166,473,296.71/79,784.61
  6. Step 6: Final answer
    x = 39,687.77

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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.