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Finding the Fourth Proportional to 79,315.90, 118,984.79 and 46,051.63

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Solution

The fourth proportional to 79,315.90, 118,984.79 and 46,051.63 is: 69,083.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,315.90 : 118,984.79 = 46,051.63 : x
  2. Step 2: Convert to fraction form
    79,315.90/118,984.79 = 46,051.63/x
  3. Step 3: Cross multiply
    79,315.90x = 118,984.79 × 46,051.63
  4. Step 4: Simplify right side
    79,315.90x = 5,479,443,524.71
  5. Step 5: Solve for x
    x = 5,479,443,524.71/79,315.90
  6. Step 6: Final answer
    x = 69,083.80

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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.