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Finding the Fourth Proportional to 144,483.18, 199,375.92 and 80,808.68

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Solution

The fourth proportional to 144,483.18, 199,375.92 and 80,808.68 is: 111,509.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,483.18 : 199,375.92 = 80,808.68 : x
  2. Step 2: Convert to fraction form
    144,483.18/199,375.92 = 80,808.68/x
  3. Step 3: Cross multiply
    144,483.18x = 199,375.92 × 80,808.68
  4. Step 4: Simplify right side
    144,483.18x = 16,111,303,922.11
  5. Step 5: Solve for x
    x = 16,111,303,922.11/144,483.18
  6. Step 6: Final answer
    x = 111,509.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.