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Finding the Fourth Proportional to 130,991.51, 196,483.10 and 36,227.40

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Solution

The fourth proportional to 130,991.51, 196,483.10 and 36,227.40 is: 54,339.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,991.51 : 196,483.10 = 36,227.40 : x
  2. Step 2: Convert to fraction form
    130,991.51/196,483.10 = 36,227.40/x
  3. Step 3: Cross multiply
    130,991.51x = 196,483.10 × 36,227.40
  4. Step 4: Simplify right side
    130,991.51x = 7,118,071,675.80
  5. Step 5: Solve for x
    x = 7,118,071,675.80/130,991.51
  6. Step 6: Final answer
    x = 54,339.95

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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.