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Finding the Fourth Proportional to 94,859.90, 130,890.83 and 56,634.92

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Solution

The fourth proportional to 94,859.90, 130,890.83 and 56,634.92 is: 78,146.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,859.90 : 130,890.83 = 56,634.92 : x
  2. Step 2: Convert to fraction form
    94,859.90/130,890.83 = 56,634.92/x
  3. Step 3: Cross multiply
    94,859.90x = 130,890.83 × 56,634.92
  4. Step 4: Simplify right side
    94,859.90x = 7,412,991,685.78
  5. Step 5: Solve for x
    x = 7,412,991,685.78/94,859.90
  6. Step 6: Final answer
    x = 78,146.74

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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.