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Finding the Fourth Proportional to 58,493.99, 87,740.99 and 14,120.70

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Solution

The fourth proportional to 58,493.99, 87,740.99 and 14,120.70 is: 21,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,493.99 : 87,740.99 = 14,120.70 : x
  2. Step 2: Convert to fraction form
    58,493.99/87,740.99 = 14,120.70/x
  3. Step 3: Cross multiply
    58,493.99x = 87,740.99 × 14,120.70
  4. Step 4: Simplify right side
    58,493.99x = 1,238,964,126.89
  5. Step 5: Solve for x
    x = 1,238,964,126.89/58,493.99
  6. Step 6: Final answer
    x = 21,181.05

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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.