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Finding the Fourth Proportional to 161,466.64, 242,261.46 and 72,699.73

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Solution

The fourth proportional to 161,466.64, 242,261.46 and 72,699.73 is: 109,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,466.64 : 242,261.46 = 72,699.73 : x
  2. Step 2: Convert to fraction form
    161,466.64/242,261.46 = 72,699.73/x
  3. Step 3: Cross multiply
    161,466.64x = 242,261.46 × 72,699.73
  4. Step 4: Simplify right side
    161,466.64x = 17,612,342,731.41
  5. Step 5: Solve for x
    x = 17,612,342,731.41/161,466.64
  6. Step 6: Final answer
    x = 109,077.29

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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.