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Finding the Fourth Proportional to 104,298.53, 143,930.57 and 56,550.84

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Solution

The fourth proportional to 104,298.53, 143,930.57 and 56,550.84 is: 78,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,298.53 : 143,930.57 = 56,550.84 : x
  2. Step 2: Convert to fraction form
    104,298.53/143,930.57 = 56,550.84/x
  3. Step 3: Cross multiply
    104,298.53x = 143,930.57 × 56,550.84
  4. Step 4: Simplify right side
    104,298.53x = 8,139,394,352.42
  5. Step 5: Solve for x
    x = 8,139,394,352.42/104,298.53
  6. Step 6: Final answer
    x = 78,039.40

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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.