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Finding the Fourth Proportional to 172,898.50, 238,599.93 and 93,410.50

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Solution

The fourth proportional to 172,898.50, 238,599.93 and 93,410.50 is: 128,906.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,898.50 : 238,599.93 = 93,410.50 : x
  2. Step 2: Convert to fraction form
    172,898.50/238,599.93 = 93,410.50/x
  3. Step 3: Cross multiply
    172,898.50x = 238,599.93 × 93,410.50
  4. Step 4: Simplify right side
    172,898.50x = 22,287,738,761.27
  5. Step 5: Solve for x
    x = 22,287,738,761.27/172,898.50
  6. Step 6: Final answer
    x = 128,906.49

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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.