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Finding the Fourth Proportional to 216,228.60, 324,051.30 and 144,948.60

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Solution

The fourth proportional to 216,228.60, 324,051.30 and 144,948.60 is: 217,227.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,228.60 : 324,051.30 = 144,948.60 : x
  2. Step 2: Convert to fraction form
    216,228.60/324,051.30 = 144,948.60/x
  3. Step 3: Cross multiply
    216,228.60x = 324,051.30 × 144,948.60
  4. Step 4: Simplify right side
    216,228.60x = 46,970,782,263.18
  5. Step 5: Solve for x
    x = 46,970,782,263.18/216,228.60
  6. Step 6: Final answer
    x = 217,227.43

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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.