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Finding the Fourth Proportional to 161,133.78, 241,700.74 and 61,270.90

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Solution

The fourth proportional to 161,133.78, 241,700.74 and 61,270.90 is: 91,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,133.78 : 241,700.74 = 61,270.90 : x
  2. Step 2: Convert to fraction form
    161,133.78/241,700.74 = 61,270.90/x
  3. Step 3: Cross multiply
    161,133.78x = 241,700.74 × 61,270.90
  4. Step 4: Simplify right side
    161,133.78x = 14,809,221,870.47
  5. Step 5: Solve for x
    x = 14,809,221,870.47/161,133.78
  6. Step 6: Final answer
    x = 91,906.38

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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.