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Finding the Fourth Proportional to 172,896, 238,596.48 and 93,408

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Solution

The fourth proportional to 172,896, 238,596.48 and 93,408 is: 128,903.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,896 : 238,596.48 = 93,408 : x
  2. Step 2: Convert to fraction form
    172,896/238,596.48 = 93,408/x
  3. Step 3: Cross multiply
    172,896x = 238,596.48 × 93,408
  4. Step 4: Simplify right side
    172,896x = 22,286,820,003.84
  5. Step 5: Solve for x
    x = 22,286,820,003.84/172,896
  6. Step 6: Final answer
    x = 128,903.04

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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.