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Finding the Fourth Proportional to 368,601.80, 553,194.30 and 144,069.80

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Solution

The fourth proportional to 368,601.80, 553,194.30 and 144,069.80 is: 216,218.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,601.80 : 553,194.30 = 144,069.80 : x
  2. Step 2: Convert to fraction form
    368,601.80/553,194.30 = 144,069.80/x
  3. Step 3: Cross multiply
    368,601.80x = 553,194.30 × 144,069.80
  4. Step 4: Simplify right side
    368,601.80x = 79,698,592,162.14
  5. Step 5: Solve for x
    x = 79,698,592,162.14/368,601.80
  6. Step 6: Final answer
    x = 216,218.67

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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.