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Finding the Fourth Proportional to 75,335.88, 112,960.08 and 28,563.24

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Solution

The fourth proportional to 75,335.88, 112,960.08 and 28,563.24 is: 42,828.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,335.88 : 112,960.08 = 28,563.24 : x
  2. Step 2: Convert to fraction form
    75,335.88/112,960.08 = 28,563.24/x
  3. Step 3: Cross multiply
    75,335.88x = 112,960.08 × 28,563.24
  4. Step 4: Simplify right side
    75,335.88x = 3,226,505,875.46
  5. Step 5: Solve for x
    x = 3,226,505,875.46/75,335.88
  6. Step 6: Final answer
    x = 42,828.28

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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.