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Finding the Fourth Proportional to 76,559.98, 114,855.29 and 42,873.90

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Solution

The fourth proportional to 76,559.98, 114,855.29 and 42,873.90 is: 64,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,559.98 : 114,855.29 = 42,873.90 : x
  2. Step 2: Convert to fraction form
    76,559.98/114,855.29 = 42,873.90/x
  3. Step 3: Cross multiply
    76,559.98x = 114,855.29 × 42,873.90
  4. Step 4: Simplify right side
    76,559.98x = 4,924,293,981.99
  5. Step 5: Solve for x
    x = 4,924,293,981.99/76,559.98
  6. Step 6: Final answer
    x = 64,319.43

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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.