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Finding the Fourth Proportional to 58,477.58, 87,744.45 and 45,919.34

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Solution

The fourth proportional to 58,477.58, 87,744.45 and 45,919.34 is: 68,901.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,477.58 : 87,744.45 = 45,919.34 : x
  2. Step 2: Convert to fraction form
    58,477.58/87,744.45 = 45,919.34/x
  3. Step 3: Cross multiply
    58,477.58x = 87,744.45 × 45,919.34
  4. Step 4: Simplify right side
    58,477.58x = 4,029,167,232.66
  5. Step 5: Solve for x
    x = 4,029,167,232.66/58,477.58
  6. Step 6: Final answer
    x = 68,901.06

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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.