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Finding the Fourth Proportional to 144,059.44, 216,153.96 and 91,454.80

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Solution

The fourth proportional to 144,059.44, 216,153.96 and 91,454.80 is: 137,223.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,059.44 : 216,153.96 = 91,454.80 : x
  2. Step 2: Convert to fraction form
    144,059.44/216,153.96 = 91,454.80/x
  3. Step 3: Cross multiply
    144,059.44x = 216,153.96 × 91,454.80
  4. Step 4: Simplify right side
    144,059.44x = 19,768,317,181.01
  5. Step 5: Solve for x
    x = 19,768,317,181.01/144,059.44
  6. Step 6: Final answer
    x = 137,223.34

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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.