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Finding the Fourth Proportional to 156,996.96, 216,591.92 and 88,999.52

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Solution

The fourth proportional to 156,996.96, 216,591.92 and 88,999.52 is: 122,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,996.96 : 216,591.92 = 88,999.52 : x
  2. Step 2: Convert to fraction form
    156,996.96/216,591.92 = 88,999.52/x
  3. Step 3: Cross multiply
    156,996.96x = 216,591.92 × 88,999.52
  4. Step 4: Simplify right side
    156,996.96x = 19,276,576,915.88
  5. Step 5: Solve for x
    x = 19,276,576,915.88/156,996.96
  6. Step 6: Final answer
    x = 122,783.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.