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Finding the Fourth Proportional to 79,903.94, 119,774.79 and 51,841.98

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Solution

The fourth proportional to 79,903.94, 119,774.79 and 51,841.98 is: 77,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,903.94 : 119,774.79 = 51,841.98 : x
  2. Step 2: Convert to fraction form
    79,903.94/119,774.79 = 51,841.98/x
  3. Step 3: Cross multiply
    79,903.94x = 119,774.79 × 51,841.98
  4. Step 4: Simplify right side
    79,903.94x = 6,209,362,267.68
  5. Step 5: Solve for x
    x = 6,209,362,267.68/79,903.94
  6. Step 6: Final answer
    x = 77,710.34

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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.