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Finding the Fourth Proportional to 114,915.48, 172,223.48 and 58,708.22

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Solution

The fourth proportional to 114,915.48, 172,223.48 and 58,708.22 is: 87,985.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,915.48 : 172,223.48 = 58,708.22 : x
  2. Step 2: Convert to fraction form
    114,915.48/172,223.48 = 58,708.22/x
  3. Step 3: Cross multiply
    114,915.48x = 172,223.48 × 58,708.22
  4. Step 4: Simplify right side
    114,915.48x = 10,110,933,953.01
  5. Step 5: Solve for x
    x = 10,110,933,953.01/114,915.48
  6. Step 6: Final answer
    x = 87,985.83

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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.