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Finding the Fourth Proportional to 75,065.80, 112,566.30 and 37,611.40

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Solution

The fourth proportional to 75,065.80, 112,566.30 and 37,611.40 is: 56,400.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,065.80 : 112,566.30 = 37,611.40 : x
  2. Step 2: Convert to fraction form
    75,065.80/112,566.30 = 37,611.40/x
  3. Step 3: Cross multiply
    75,065.80x = 112,566.30 × 37,611.40
  4. Step 4: Simplify right side
    75,065.80x = 4,233,776,135.82
  5. Step 5: Solve for x
    x = 4,233,776,135.82/75,065.80
  6. Step 6: Final answer
    x = 56,400.87

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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.