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Finding the Fourth Proportional to 58,493.60, 87,739.62 and 14,120.11

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Solution

The fourth proportional to 58,493.60, 87,739.62 and 14,120.11 is: 21,179.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,493.60 : 87,739.62 = 14,120.11 : x
  2. Step 2: Convert to fraction form
    58,493.60/87,739.62 = 14,120.11/x
  3. Step 3: Cross multiply
    58,493.60x = 87,739.62 × 14,120.11
  4. Step 4: Simplify right side
    58,493.60x = 1,238,893,085.76
  5. Step 5: Solve for x
    x = 1,238,893,085.76/58,493.60
  6. Step 6: Final answer
    x = 21,179.98

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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.