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Finding the Fourth Proportional to 104,420.82, 144,100.86 and 56,674.16

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Solution

The fourth proportional to 104,420.82, 144,100.86 and 56,674.16 is: 78,210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,420.82 : 144,100.86 = 56,674.16 : x
  2. Step 2: Convert to fraction form
    104,420.82/144,100.86 = 56,674.16/x
  3. Step 3: Cross multiply
    104,420.82x = 144,100.86 × 56,674.16
  4. Step 4: Simplify right side
    104,420.82x = 8,166,795,195.78
  5. Step 5: Solve for x
    x = 8,166,795,195.78/104,420.82
  6. Step 6: Final answer
    x = 78,210.41

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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.