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Finding the Fourth Proportional to 104,366.90, 144,026.60 and 56,620.25

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Solution

The fourth proportional to 104,366.90, 144,026.60 and 56,620.25 is: 78,136.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,366.90 : 144,026.60 = 56,620.25 : x
  2. Step 2: Convert to fraction form
    104,366.90/144,026.60 = 56,620.25/x
  3. Step 3: Cross multiply
    104,366.90x = 144,026.60 × 56,620.25
  4. Step 4: Simplify right side
    104,366.90x = 8,154,821,635.52
  5. Step 5: Solve for x
    x = 8,154,821,635.52/104,366.90
  6. Step 6: Final answer
    x = 78,136.09

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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.