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Finding the Fourth Proportional to 150,418.98, 207,598.92 and 86,755.38

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Solution

The fourth proportional to 150,418.98, 207,598.92 and 86,755.38 is: 119,734.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,418.98 : 207,598.92 = 86,755.38 : x
  2. Step 2: Convert to fraction form
    150,418.98/207,598.92 = 86,755.38/x
  3. Step 3: Cross multiply
    150,418.98x = 207,598.92 × 86,755.38
  4. Step 4: Simplify right side
    150,418.98x = 18,010,323,192.19
  5. Step 5: Solve for x
    x = 18,010,323,192.19/150,418.98
  6. Step 6: Final answer
    x = 119,734.38

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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.