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Finding the Fourth Proportional to 245,015.93, 367,031.80 and 111,712.81

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Solution

The fourth proportional to 245,015.93, 367,031.80 and 111,712.81 is: 167,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,015.93 : 367,031.80 = 111,712.81 : x
  2. Step 2: Convert to fraction form
    245,015.93/367,031.80 = 111,712.81/x
  3. Step 3: Cross multiply
    245,015.93x = 367,031.80 × 111,712.81
  4. Step 4: Simplify right side
    245,015.93x = 41,002,153,737.36
  5. Step 5: Solve for x
    x = 41,002,153,737.36/245,015.93
  6. Step 6: Final answer
    x = 167,344.85

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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.