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Finding the Fourth Proportional to 216,005.60, 324,008.40 and 132,024.80

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Solution

The fourth proportional to 216,005.60, 324,008.40 and 132,024.80 is: 198,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,005.60 : 324,008.40 = 132,024.80 : x
  2. Step 2: Convert to fraction form
    216,005.60/324,008.40 = 132,024.80/x
  3. Step 3: Cross multiply
    216,005.60x = 324,008.40 × 132,024.80
  4. Step 4: Simplify right side
    216,005.60x = 42,777,144,208.32
  5. Step 5: Solve for x
    x = 42,777,144,208.32/216,005.60
  6. Step 6: Final answer
    x = 198,037.20

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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.