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Finding the Fourth Proportional to 94,920.80, 130,996.88 and 54,639.52

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Solution

The fourth proportional to 94,920.80, 130,996.88 and 54,639.52 is: 75,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,920.80 : 130,996.88 = 54,639.52 : x
  2. Step 2: Convert to fraction form
    94,920.80/130,996.88 = 54,639.52/x
  3. Step 3: Cross multiply
    94,920.80x = 130,996.88 × 54,639.52
  4. Step 4: Simplify right side
    94,920.80x = 7,157,606,644.70
  5. Step 5: Solve for x
    x = 7,157,606,644.70/94,920.80
  6. Step 6: Final answer
    x = 75,406.09

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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.