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Finding the Fourth Proportional to 79,004,638.80, 118,491,211.80 and 38,063,998.80

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Solution

The fourth proportional to 79,004,638.80, 118,491,211.80 and 38,063,998.80 is: 57,088,411.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,004,638.80 : 118,491,211.80 = 38,063,998.80 : x
  2. Step 2: Convert to fraction form
    79,004,638.80/118,491,211.80 = 38,063,998.80/x
  3. Step 3: Cross multiply
    79,004,638.80x = 118,491,211.80 × 38,063,998.80
  4. Step 4: Simplify right side
    79,004,638.80x = 4,510,249,343,765,745
  5. Step 5: Solve for x
    x = 4,510,249,343,765,745/79,004,638.80
  6. Step 6: Final answer
    x = 57,088,411.67

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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.