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Finding the Fourth Proportional to 114,358.40, 157,809.96 and 63,371.90

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Solution

The fourth proportional to 114,358.40, 157,809.96 and 63,371.90 is: 87,450.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,358.40 : 157,809.96 = 63,371.90 : x
  2. Step 2: Convert to fraction form
    114,358.40/157,809.96 = 63,371.90/x
  3. Step 3: Cross multiply
    114,358.40x = 157,809.96 × 63,371.90
  4. Step 4: Simplify right side
    114,358.40x = 10,000,717,004.12
  5. Step 5: Solve for x
    x = 10,000,717,004.12/114,358.40
  6. Step 6: Final answer
    x = 87,450.66

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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.