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Finding the Fourth Proportional to 75,335.89, 112,960.08 and 28,563.25

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Solution

The fourth proportional to 75,335.89, 112,960.08 and 28,563.25 is: 42,828.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,335.89 : 112,960.08 = 28,563.25 : x
  2. Step 2: Convert to fraction form
    75,335.89/112,960.08 = 28,563.25/x
  3. Step 3: Cross multiply
    75,335.89x = 112,960.08 × 28,563.25
  4. Step 4: Simplify right side
    75,335.89x = 3,226,507,005.06
  5. Step 5: Solve for x
    x = 3,226,507,005.06/75,335.89
  6. Step 6: Final answer
    x = 42,828.29

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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.