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Finding the Fourth Proportional to 79,800.34, 119,703.01 and 29,870.90

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Solution

The fourth proportional to 79,800.34, 119,703.01 and 29,870.90 is: 44,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,800.34 : 119,703.01 = 29,870.90 : x
  2. Step 2: Convert to fraction form
    79,800.34/119,703.01 = 29,870.90/x
  3. Step 3: Cross multiply
    79,800.34x = 119,703.01 × 29,870.90
  4. Step 4: Simplify right side
    79,800.34x = 3,575,635,893.54
  5. Step 5: Solve for x
    x = 3,575,635,893.54/79,800.34
  6. Step 6: Final answer
    x = 44,807.28

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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.