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Finding the Fourth Proportional to 106,887.80, 160,331.70 and 56,948.60

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Solution

The fourth proportional to 106,887.80, 160,331.70 and 56,948.60 is: 85,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,887.80 : 160,331.70 = 56,948.60 : x
  2. Step 2: Convert to fraction form
    106,887.80/160,331.70 = 56,948.60/x
  3. Step 3: Cross multiply
    106,887.80x = 160,331.70 × 56,948.60
  4. Step 4: Simplify right side
    106,887.80x = 9,130,665,850.62
  5. Step 5: Solve for x
    x = 9,130,665,850.62/106,887.80
  6. Step 6: Final answer
    x = 85,422.90

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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.