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Finding the Fourth Proportional to 216,811.60, 324,871.80 and 160,824.40

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Solution

The fourth proportional to 216,811.60, 324,871.80 and 160,824.40 is: 240,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,811.60 : 324,871.80 = 160,824.40 : x
  2. Step 2: Convert to fraction form
    216,811.60/324,871.80 = 160,824.40/x
  3. Step 3: Cross multiply
    216,811.60x = 324,871.80 × 160,824.40
  4. Step 4: Simplify right side
    216,811.60x = 52,247,312,311.92
  5. Step 5: Solve for x
    x = 52,247,312,311.92/216,811.60
  6. Step 6: Final answer
    x = 240,980.24

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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.