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Finding the Fourth Proportional to 161,267.53, 241,905.54 and 42,939.07

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Solution

The fourth proportional to 161,267.53, 241,905.54 and 42,939.07 is: 64,409.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,267.53 : 241,905.54 = 42,939.07 : x
  2. Step 2: Convert to fraction form
    161,267.53/241,905.54 = 42,939.07/x
  3. Step 3: Cross multiply
    161,267.53x = 241,905.54 × 42,939.07
  4. Step 4: Simplify right side
    161,267.53x = 10,387,198,915.45
  5. Step 5: Solve for x
    x = 10,387,198,915.45/161,267.53
  6. Step 6: Final answer
    x = 64,409.74

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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.