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Finding the Fourth Proportional to 104,311.19, 143,948.19 and 56,563.97

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Solution

The fourth proportional to 104,311.19, 143,948.19 and 56,563.97 is: 78,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,311.19 : 143,948.19 = 56,563.97 : x
  2. Step 2: Convert to fraction form
    104,311.19/143,948.19 = 56,563.97/x
  3. Step 3: Cross multiply
    104,311.19x = 143,948.19 × 56,563.97
  4. Step 4: Simplify right side
    104,311.19x = 8,142,281,084.62
  5. Step 5: Solve for x
    x = 8,142,281,084.62/104,311.19
  6. Step 6: Final answer
    x = 78,057.60

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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.