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Finding the Fourth Proportional to 76,017.88, 114,009.49 and 28,637.88

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Solution

The fourth proportional to 76,017.88, 114,009.49 and 28,637.88 is: 42,950.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,017.88 : 114,009.49 = 28,637.88 : x
  2. Step 2: Convert to fraction form
    76,017.88/114,009.49 = 28,637.88/x
  3. Step 3: Cross multiply
    76,017.88x = 114,009.49 × 28,637.88
  4. Step 4: Simplify right side
    76,017.88x = 3,264,990,093.48
  5. Step 5: Solve for x
    x = 3,264,990,093.48/76,017.88
  6. Step 6: Final answer
    x = 42,950.29

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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.