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Finding the Fourth Proportional to 58,983.45, 81,400.56 and 44,421.56

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Solution

The fourth proportional to 58,983.45, 81,400.56 and 44,421.56 is: 61,304.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,983.45 : 81,400.56 = 44,421.56 : x
  2. Step 2: Convert to fraction form
    58,983.45/81,400.56 = 44,421.56/x
  3. Step 3: Cross multiply
    58,983.45x = 81,400.56 × 44,421.56
  4. Step 4: Simplify right side
    58,983.45x = 3,615,939,860.07
  5. Step 5: Solve for x
    x = 3,615,939,860.07/58,983.45
  6. Step 6: Final answer
    x = 61,304.31

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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.