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Finding the Fourth Proportional to 216,250.80, 324,327.60 and 141,892.80

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Solution

The fourth proportional to 216,250.80, 324,327.60 and 141,892.80 is: 212,807.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,250.80 : 324,327.60 = 141,892.80 : x
  2. Step 2: Convert to fraction form
    216,250.80/324,327.60 = 141,892.80/x
  3. Step 3: Cross multiply
    216,250.80x = 324,327.60 × 141,892.80
  4. Step 4: Simplify right side
    216,250.80x = 46,019,751,281.28
  5. Step 5: Solve for x
    x = 46,019,751,281.28/216,250.80
  6. Step 6: Final answer
    x = 212,807.31

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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.