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Finding the Fourth Proportional to 189,200.52, 261,098.50 and 104,320.60

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Solution

The fourth proportional to 189,200.52, 261,098.50 and 104,320.60 is: 143,963.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,200.52 : 261,098.50 = 104,320.60 : x
  2. Step 2: Convert to fraction form
    189,200.52/261,098.50 = 104,320.60/x
  3. Step 3: Cross multiply
    189,200.52x = 261,098.50 × 104,320.60
  4. Step 4: Simplify right side
    189,200.52x = 27,237,952,179.10
  5. Step 5: Solve for x
    x = 27,237,952,179.10/189,200.52
  6. Step 6: Final answer
    x = 143,963.41

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1.5x scale

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.