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Finding the Fourth Proportional to 144,007.60, 215,838.60 and 73,850.80

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Solution

The fourth proportional to 144,007.60, 215,838.60 and 73,850.80 is: 110,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,007.60 : 215,838.60 = 73,850.80 : x
  2. Step 2: Convert to fraction form
    144,007.60/215,838.60 = 73,850.80/x
  3. Step 3: Cross multiply
    144,007.60x = 215,838.60 × 73,850.80
  4. Step 4: Simplify right side
    144,007.60x = 15,939,853,280.88
  5. Step 5: Solve for x
    x = 15,939,853,280.88/144,007.60
  6. Step 6: Final answer
    x = 110,687.58

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1.5x scale

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.