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Finding the Fourth Proportional to 74,999.39, 112,530.14 and 32,857.70

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Solution

The fourth proportional to 74,999.39, 112,530.14 and 32,857.70 is: 49,300.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,999.39 : 112,530.14 = 32,857.70 : x
  2. Step 2: Convert to fraction form
    74,999.39/112,530.14 = 32,857.70/x
  3. Step 3: Cross multiply
    74,999.39x = 112,530.14 × 32,857.70
  4. Step 4: Simplify right side
    74,999.39x = 3,697,481,581.08
  5. Step 5: Solve for x
    x = 3,697,481,581.08/74,999.39
  6. Step 6: Final answer
    x = 49,300.16

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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.