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Finding the Fourth Proportional to 75,681.84, 113,483.85 and 40,650.96

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Solution

The fourth proportional to 75,681.84, 113,483.85 and 40,650.96 is: 60,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,681.84 : 113,483.85 = 40,650.96 : x
  2. Step 2: Convert to fraction form
    75,681.84/113,483.85 = 40,650.96/x
  3. Step 3: Cross multiply
    75,681.84x = 113,483.85 × 40,650.96
  4. Step 4: Simplify right side
    75,681.84x = 4,613,227,447.00
  5. Step 5: Solve for x
    x = 4,613,227,447.00/75,681.84
  6. Step 6: Final answer
    x = 60,955.54

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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.