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Finding the Fourth Proportional to 73,966.61, 110,917.11 and 45,885.53

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Solution

The fourth proportional to 73,966.61, 110,917.11 and 45,885.53 is: 68,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,966.61 : 110,917.11 = 45,885.53 : x
  2. Step 2: Convert to fraction form
    73,966.61/110,917.11 = 45,885.53/x
  3. Step 3: Cross multiply
    73,966.61x = 110,917.11 × 45,885.53
  4. Step 4: Simplify right side
    73,966.61x = 5,089,490,827.78
  5. Step 5: Solve for x
    x = 5,089,490,827.78/73,966.61
  6. Step 6: Final answer
    x = 68,807.95

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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.