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Finding the Fourth Proportional to 58,819.76, 81,148.20 and 33,655.76

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Solution

The fourth proportional to 58,819.76, 81,148.20 and 33,655.76 is: 46,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,819.76 : 81,148.20 = 33,655.76 : x
  2. Step 2: Convert to fraction form
    58,819.76/81,148.20 = 33,655.76/x
  3. Step 3: Cross multiply
    58,819.76x = 81,148.20 × 33,655.76
  4. Step 4: Simplify right side
    58,819.76x = 2,731,104,343.63
  5. Step 5: Solve for x
    x = 2,731,104,343.63/58,819.76
  6. Step 6: Final answer
    x = 46,431.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.