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Finding the Fourth Proportional to 104,644.60, 144,405.60 and 56,896.30

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Solution

The fourth proportional to 104,644.60, 144,405.60 and 56,896.30 is: 78,514.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,644.60 : 144,405.60 = 56,896.30 : x
  2. Step 2: Convert to fraction form
    104,644.60/144,405.60 = 56,896.30/x
  3. Step 3: Cross multiply
    104,644.60x = 144,405.60 × 56,896.30
  4. Step 4: Simplify right side
    104,644.60x = 8,216,144,339.28
  5. Step 5: Solve for x
    x = 8,216,144,339.28/104,644.60
  6. Step 6: Final answer
    x = 78,514.75

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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.