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Finding the Fourth Proportional to 79,358.90, 119,038.35 and 61,841.84

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Solution

The fourth proportional to 79,358.90, 119,038.35 and 61,841.84 is: 92,762.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,358.90 : 119,038.35 = 61,841.84 : x
  2. Step 2: Convert to fraction form
    79,358.90/119,038.35 = 61,841.84/x
  3. Step 3: Cross multiply
    79,358.90x = 119,038.35 × 61,841.84
  4. Step 4: Simplify right side
    79,358.90x = 7,361,550,594.56
  5. Step 5: Solve for x
    x = 7,361,550,594.56/79,358.90
  6. Step 6: Final answer
    x = 92,762.76

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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.