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Finding the Fourth Proportional to 114,040, 157,380.06 and 63,739

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Solution

The fourth proportional to 114,040, 157,380.06 and 63,739 is: 87,962.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,040 : 157,380.06 = 63,739 : x
  2. Step 2: Convert to fraction form
    114,040/157,380.06 = 63,739/x
  3. Step 3: Cross multiply
    114,040x = 157,380.06 × 63,739
  4. Step 4: Simplify right side
    114,040x = 10,031,247,644.34
  5. Step 5: Solve for x
    x = 10,031,247,644.34/114,040
  6. Step 6: Final answer
    x = 87,962.54

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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.