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Finding the Fourth Proportional to 130,053.20, 194,788.20 and 112,557.20

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Solution

The fourth proportional to 130,053.20, 194,788.20 and 112,557.20 is: 168,583.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,053.20 : 194,788.20 = 112,557.20 : x
  2. Step 2: Convert to fraction form
    130,053.20/194,788.20 = 112,557.20/x
  3. Step 3: Cross multiply
    130,053.20x = 194,788.20 × 112,557.20
  4. Step 4: Simplify right side
    130,053.20x = 21,924,814,385.04
  5. Step 5: Solve for x
    x = 21,924,814,385.04/130,053.20
  6. Step 6: Final answer
    x = 168,583.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.