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Finding the Fourth Proportional to 58,720.21, 81,054.90 and 34,846.87

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Solution

The fourth proportional to 58,720.21, 81,054.90 and 34,846.87 is: 48,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,720.21 : 81,054.90 = 34,846.87 : x
  2. Step 2: Convert to fraction form
    58,720.21/81,054.90 = 34,846.87/x
  3. Step 3: Cross multiply
    58,720.21x = 81,054.90 × 34,846.87
  4. Step 4: Simplify right side
    58,720.21x = 2,824,509,563.16
  5. Step 5: Solve for x
    x = 2,824,509,563.16/58,720.21
  6. Step 6: Final answer
    x = 48,101.15

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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.