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Finding the Fourth Proportional to 104,953.55, 144,835.92 and 57,206.88

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Solution

The fourth proportional to 104,953.55, 144,835.92 and 57,206.88 is: 78,945.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,953.55 : 144,835.92 = 57,206.88 : x
  2. Step 2: Convert to fraction form
    104,953.55/144,835.92 = 57,206.88/x
  3. Step 3: Cross multiply
    104,953.55x = 144,835.92 × 57,206.88
  4. Step 4: Simplify right side
    104,953.55x = 8,285,611,095.13
  5. Step 5: Solve for x
    x = 8,285,611,095.13/104,953.55
  6. Step 6: Final answer
    x = 78,945.51

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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.