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Finding the Fourth Proportional to 216,056.80, 324,430.80 and 146,245.60

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Solution

The fourth proportional to 216,056.80, 324,430.80 and 146,245.60 is: 219,602.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,056.80 : 324,430.80 = 146,245.60 : x
  2. Step 2: Convert to fraction form
    216,056.80/324,430.80 = 146,245.60/x
  3. Step 3: Cross multiply
    216,056.80x = 324,430.80 × 146,245.60
  4. Step 4: Simplify right side
    216,056.80x = 47,446,577,004.48
  5. Step 5: Solve for x
    x = 47,446,577,004.48/216,056.80
  6. Step 6: Final answer
    x = 219,602.33

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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.