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Finding the Fourth Proportional to 78,788.67, 118,184.63 and 43,950.03

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Solution

The fourth proportional to 78,788.67, 118,184.63 and 43,950.03 is: 65,925.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,788.67 : 118,184.63 = 43,950.03 : x
  2. Step 2: Convert to fraction form
    78,788.67/118,184.63 = 43,950.03/x
  3. Step 3: Cross multiply
    78,788.67x = 118,184.63 × 43,950.03
  4. Step 4: Simplify right side
    78,788.67x = 5,194,217,814.29
  5. Step 5: Solve for x
    x = 5,194,217,814.29/78,788.67
  6. Step 6: Final answer
    x = 65,925.95

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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.