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Finding the Fourth Proportional to 161,731.40, 242,597.10 and 161,731.40

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Solution

The fourth proportional to 161,731.40, 242,597.10 and 161,731.40 is: 242,597.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,731.40 : 242,597.10 = 161,731.40 : x
  2. Step 2: Convert to fraction form
    161,731.40/242,597.10 = 161,731.40/x
  3. Step 3: Cross multiply
    161,731.40x = 242,597.10 × 161,731.40
  4. Step 4: Simplify right side
    161,731.40x = 39,235,568,618.94
  5. Step 5: Solve for x
    x = 39,235,568,618.94/161,731.40
  6. Step 6: Final answer
    x = 242,597.10

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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.