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Finding the Fourth Proportional to 199,606.20, 299,006.10 and 124,495.80

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Solution

The fourth proportional to 199,606.20, 299,006.10 and 124,495.80 is: 186,492.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,606.20 : 299,006.10 = 124,495.80 : x
  2. Step 2: Convert to fraction form
    199,606.20/299,006.10 = 124,495.80/x
  3. Step 3: Cross multiply
    199,606.20x = 299,006.10 × 124,495.80
  4. Step 4: Simplify right side
    199,606.20x = 37,225,003,624.38
  5. Step 5: Solve for x
    x = 37,225,003,624.38/199,606.20
  6. Step 6: Final answer
    x = 186,492.22

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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.