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Finding the Fourth Proportional to 144,328.80, 216,711.90 and 111,086.40

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Solution

The fourth proportional to 144,328.80, 216,711.90 and 111,086.40 is: 166,797.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,328.80 : 216,711.90 = 111,086.40 : x
  2. Step 2: Convert to fraction form
    144,328.80/216,711.90 = 111,086.40/x
  3. Step 3: Cross multiply
    144,328.80x = 216,711.90 × 111,086.40
  4. Step 4: Simplify right side
    144,328.80x = 24,073,744,808.16
  5. Step 5: Solve for x
    x = 24,073,744,808.16/144,328.80
  6. Step 6: Final answer
    x = 166,797.93

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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.