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Finding the Fourth Proportional to 144,340.92, 216,555.12 and 65,433.96

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Solution

The fourth proportional to 144,340.92, 216,555.12 and 65,433.96 is: 98,170.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,340.92 : 216,555.12 = 65,433.96 : x
  2. Step 2: Convert to fraction form
    144,340.92/216,555.12 = 65,433.96/x
  3. Step 3: Cross multiply
    144,340.92x = 216,555.12 × 65,433.96
  4. Step 4: Simplify right side
    144,340.92x = 14,170,059,059.88
  5. Step 5: Solve for x
    x = 14,170,059,059.88/144,340.92
  6. Step 6: Final answer
    x = 98,170.77

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1.5x scale

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.