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Finding the Fourth Proportional to 144,002.60, 216,234.30 and 108,981.80

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Solution

The fourth proportional to 144,002.60, 216,234.30 and 108,981.80 is: 163,647.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,002.60 : 216,234.30 = 108,981.80 : x
  2. Step 2: Convert to fraction form
    144,002.60/216,234.30 = 108,981.80/x
  3. Step 3: Cross multiply
    144,002.60x = 216,234.30 × 108,981.80
  4. Step 4: Simplify right side
    144,002.60x = 23,565,603,235.74
  5. Step 5: Solve for x
    x = 23,565,603,235.74/144,002.60
  6. Step 6: Final answer
    x = 163,647.07

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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.