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Finding the Fourth Proportional to 172,849.60, 238,532.40 and 93,361.60

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Solution

The fourth proportional to 172,849.60, 238,532.40 and 93,361.60 is: 128,838.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,849.60 : 238,532.40 = 93,361.60 : x
  2. Step 2: Convert to fraction form
    172,849.60/238,532.40 = 93,361.60/x
  3. Step 3: Cross multiply
    172,849.60x = 238,532.40 × 93,361.60
  4. Step 4: Simplify right side
    172,849.60x = 22,269,766,515.84
  5. Step 5: Solve for x
    x = 22,269,766,515.84/172,849.60
  6. Step 6: Final answer
    x = 128,838.98

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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.