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Finding the Fourth Proportional to 172,511.02, 238,024.50 and 145,020.22

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Solution

The fourth proportional to 172,511.02, 238,024.50 and 145,020.22 is: 200,093.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,511.02 : 238,024.50 = 145,020.22 : x
  2. Step 2: Convert to fraction form
    172,511.02/238,024.50 = 145,020.22/x
  3. Step 3: Cross multiply
    172,511.02x = 238,024.50 × 145,020.22
  4. Step 4: Simplify right side
    172,511.02x = 34,518,365,355.39
  5. Step 5: Solve for x
    x = 34,518,365,355.39/172,511.02
  6. Step 6: Final answer
    x = 200,093.68

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1.5x scale

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.