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Finding the Fourth Proportional to 161,927.40, 242,847.90 and 56,735.40

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Solution

The fourth proportional to 161,927.40, 242,847.90 and 56,735.40 is: 85,087.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,927.40 : 242,847.90 = 56,735.40 : x
  2. Step 2: Convert to fraction form
    161,927.40/242,847.90 = 56,735.40/x
  3. Step 3: Cross multiply
    161,927.40x = 242,847.90 × 56,735.40
  4. Step 4: Simplify right side
    161,927.40x = 13,778,072,745.66
  5. Step 5: Solve for x
    x = 13,778,072,745.66/161,927.40
  6. Step 6: Final answer
    x = 85,087.96

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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.