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Finding the Fourth Proportional to 104,645.49, 144,410.09 and 56,898.87

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Solution

The fourth proportional to 104,645.49, 144,410.09 and 56,898.87 is: 78,520.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,645.49 : 144,410.09 = 56,898.87 : x
  2. Step 2: Convert to fraction form
    104,645.49/144,410.09 = 56,898.87/x
  3. Step 3: Cross multiply
    104,645.49x = 144,410.09 × 56,898.87
  4. Step 4: Simplify right side
    104,645.49x = 8,216,770,653.10
  5. Step 5: Solve for x
    x = 8,216,770,653.10/104,645.49
  6. Step 6: Final answer
    x = 78,520.06

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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.