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Finding the Fourth Proportional to 189,907.55, 262,077.00 and 103,874.62

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Solution

The fourth proportional to 189,907.55, 262,077.00 and 103,874.62 is: 143,349.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,907.55 : 262,077.00 = 103,874.62 : x
  2. Step 2: Convert to fraction form
    189,907.55/262,077.00 = 103,874.62/x
  3. Step 3: Cross multiply
    189,907.55x = 262,077.00 × 103,874.62
  4. Step 4: Simplify right side
    189,907.55x = 27,223,148,816.71
  5. Step 5: Solve for x
    x = 27,223,148,816.71/189,907.55
  6. Step 6: Final answer
    x = 143,349.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.