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Finding the Fourth Proportional to 104,196.57, 143,790.36 and 56,449.80

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Solution

The fourth proportional to 104,196.57, 143,790.36 and 56,449.80 is: 77,900.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,196.57 : 143,790.36 = 56,449.80 : x
  2. Step 2: Convert to fraction form
    104,196.57/143,790.36 = 56,449.80/x
  3. Step 3: Cross multiply
    104,196.57x = 143,790.36 × 56,449.80
  4. Step 4: Simplify right side
    104,196.57x = 8,116,937,063.93
  5. Step 5: Solve for x
    x = 8,116,937,063.93/104,196.57
  6. Step 6: Final answer
    x = 77,900.23

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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.