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Finding the Fourth Proportional to 104,341.97, 143,990.87 and 56,594.30

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Solution

The fourth proportional to 104,341.97, 143,990.87 and 56,594.30 is: 78,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,341.97 : 143,990.87 = 56,594.30 : x
  2. Step 2: Convert to fraction form
    104,341.97/143,990.87 = 56,594.30/x
  3. Step 3: Cross multiply
    104,341.97x = 143,990.87 × 56,594.30
  4. Step 4: Simplify right side
    104,341.97x = 8,149,061,491.12
  5. Step 5: Solve for x
    x = 8,149,061,491.12/104,341.97
  6. Step 6: Final answer
    x = 78,099.55

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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.