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Finding the Fourth Proportional to 245,033.16, 367,316.44 and 78,704.52

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Solution

The fourth proportional to 245,033.16, 367,316.44 and 78,704.52 is: 117,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,033.16 : 367,316.44 = 78,704.52 : x
  2. Step 2: Convert to fraction form
    245,033.16/367,316.44 = 78,704.52/x
  3. Step 3: Cross multiply
    245,033.16x = 367,316.44 × 78,704.52
  4. Step 4: Simplify right side
    245,033.16x = 28,909,464,098.31
  5. Step 5: Solve for x
    x = 28,909,464,098.31/245,033.16
  6. Step 6: Final answer
    x = 117,981.84

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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.