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Finding the Fourth Proportional to 73,298.36, 109,873.68 and 28,907.96

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Solution

The fourth proportional to 73,298.36, 109,873.68 and 28,907.96 is: 43,332.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,298.36 : 109,873.68 = 28,907.96 : x
  2. Step 2: Convert to fraction form
    73,298.36/109,873.68 = 28,907.96/x
  3. Step 3: Cross multiply
    73,298.36x = 109,873.68 × 28,907.96
  4. Step 4: Simplify right side
    73,298.36x = 3,176,223,946.49
  5. Step 5: Solve for x
    x = 3,176,223,946.49/73,298.36
  6. Step 6: Final answer
    x = 43,332.81

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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.