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Finding the Fourth Proportional to 58,742.55, 81,106.84 and 36,111.88

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Solution

The fourth proportional to 58,742.55, 81,106.84 and 36,111.88 is: 49,860.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,742.55 : 81,106.84 = 36,111.88 : x
  2. Step 2: Convert to fraction form
    58,742.55/81,106.84 = 36,111.88/x
  3. Step 3: Cross multiply
    58,742.55x = 81,106.84 × 36,111.88
  4. Step 4: Simplify right side
    58,742.55x = 2,928,920,473.26
  5. Step 5: Solve for x
    x = 2,928,920,473.26/58,742.55
  6. Step 6: Final answer
    x = 49,860.29

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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.