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Finding the Fourth Proportional to 64,354.84, 88,779.66 and 40,494.67

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Solution

The fourth proportional to 64,354.84, 88,779.66 and 40,494.67 is: 55,863.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,354.84 : 88,779.66 = 40,494.67 : x
  2. Step 2: Convert to fraction form
    64,354.84/88,779.66 = 40,494.67/x
  3. Step 3: Cross multiply
    64,354.84x = 88,779.66 × 40,494.67
  4. Step 4: Simplify right side
    64,354.84x = 3,595,103,034.41
  5. Step 5: Solve for x
    x = 3,595,103,034.41/64,354.84
  6. Step 6: Final answer
    x = 55,863.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.