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Finding the Fourth Proportional to 104,311.79, 143,950.14 and 56,565.06

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Solution

The fourth proportional to 104,311.79, 143,950.14 and 56,565.06 is: 78,059.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,311.79 : 143,950.14 = 56,565.06 : x
  2. Step 2: Convert to fraction form
    104,311.79/143,950.14 = 56,565.06/x
  3. Step 3: Cross multiply
    104,311.79x = 143,950.14 × 56,565.06
  4. Step 4: Simplify right side
    104,311.79x = 8,142,548,306.11
  5. Step 5: Solve for x
    x = 8,142,548,306.11/104,311.79
  6. Step 6: Final answer
    x = 78,059.71

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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.