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Finding the Fourth Proportional to 114,388.74, 157,852.41 and 63,406.20

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Solution

The fourth proportional to 114,388.74, 157,852.41 and 63,406.20 is: 87,498.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,388.74 : 157,852.41 = 63,406.20 : x
  2. Step 2: Convert to fraction form
    114,388.74/157,852.41 = 63,406.20/x
  3. Step 3: Cross multiply
    114,388.74x = 157,852.41 × 63,406.20
  4. Step 4: Simplify right side
    114,388.74x = 10,008,821,478.94
  5. Step 5: Solve for x
    x = 10,008,821,478.94/114,388.74
  6. Step 6: Final answer
    x = 87,498.31

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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.