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Finding the Fourth Proportional to 58,819.56, 81,115.65 and 45,369.51

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Solution

The fourth proportional to 58,819.56, 81,115.65 and 45,369.51 is: 62,567.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,819.56 : 81,115.65 = 45,369.51 : x
  2. Step 2: Convert to fraction form
    58,819.56/81,115.65 = 45,369.51/x
  3. Step 3: Cross multiply
    58,819.56x = 81,115.65 × 45,369.51
  4. Step 4: Simplify right side
    58,819.56x = 3,680,177,293.83
  5. Step 5: Solve for x
    x = 3,680,177,293.83/58,819.56
  6. Step 6: Final answer
    x = 62,567.24

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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.