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Finding the Fourth Proportional to 124,053.91, 186,142.43 and 49,172.45

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Solution

The fourth proportional to 124,053.91, 186,142.43 and 49,172.45 is: 73,783.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,053.91 : 186,142.43 = 49,172.45 : x
  2. Step 2: Convert to fraction form
    124,053.91/186,142.43 = 49,172.45/x
  3. Step 3: Cross multiply
    124,053.91x = 186,142.43 × 49,172.45
  4. Step 4: Simplify right side
    124,053.91x = 9,153,078,524.27
  5. Step 5: Solve for x
    x = 9,153,078,524.27/124,053.91
  6. Step 6: Final answer
    x = 73,783.07

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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.