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Finding the Fourth Proportional to 172,834.50, 238,511.70 and 93,346.50

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Solution

The fourth proportional to 172,834.50, 238,511.70 and 93,346.50 is: 128,818.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,834.50 : 238,511.70 = 93,346.50 : x
  2. Step 2: Convert to fraction form
    172,834.50/238,511.70 = 93,346.50/x
  3. Step 3: Cross multiply
    172,834.50x = 238,511.70 × 93,346.50
  4. Step 4: Simplify right side
    172,834.50x = 22,264,232,404.05
  5. Step 5: Solve for x
    x = 22,264,232,404.05/172,834.50
  6. Step 6: Final answer
    x = 128,818.22

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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.