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Finding the Fourth Proportional to 161,790.96, 242,686.44 and 161,557.32

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Solution

The fourth proportional to 161,790.96, 242,686.44 and 161,557.32 is: 242,335.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,790.96 : 242,686.44 = 161,557.32 : x
  2. Step 2: Convert to fraction form
    161,790.96/242,686.44 = 161,557.32/x
  3. Step 3: Cross multiply
    161,790.96x = 242,686.44 × 161,557.32
  4. Step 4: Simplify right side
    161,790.96x = 39,207,770,846.74
  5. Step 5: Solve for x
    x = 39,207,770,846.74/161,790.96
  6. Step 6: Final answer
    x = 242,335.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.