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Finding the Fourth Proportional to 129,059.50, 193,596.54 and 45,953.50

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Solution

The fourth proportional to 129,059.50, 193,596.54 and 45,953.50 is: 68,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,059.50 : 193,596.54 = 45,953.50 : x
  2. Step 2: Convert to fraction form
    129,059.50/193,596.54 = 45,953.50/x
  3. Step 3: Cross multiply
    129,059.50x = 193,596.54 × 45,953.50
  4. Step 4: Simplify right side
    129,059.50x = 8,896,438,600.89
  5. Step 5: Solve for x
    x = 8,896,438,600.89/129,059.50
  6. Step 6: Final answer
    x = 68,932.85

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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.