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Finding the Fourth Proportional to 156,783.56, 235,179.80 and 38,454.80

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Solution

The fourth proportional to 156,783.56, 235,179.80 and 38,454.80 is: 57,683.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,783.56 : 235,179.80 = 38,454.80 : x
  2. Step 2: Convert to fraction form
    156,783.56/235,179.80 = 38,454.80/x
  3. Step 3: Cross multiply
    156,783.56x = 235,179.80 × 38,454.80
  4. Step 4: Simplify right side
    156,783.56x = 9,043,792,173.04
  5. Step 5: Solve for x
    x = 9,043,792,173.04/156,783.56
  6. Step 6: Final answer
    x = 57,683.29

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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.