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Finding the Fourth Proportional to 72,955.74, 100,680.47 and 41,124.63

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Solution

The fourth proportional to 72,955.74, 100,680.47 and 41,124.63 is: 56,752.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,955.74 : 100,680.47 = 41,124.63 : x
  2. Step 2: Convert to fraction form
    72,955.74/100,680.47 = 41,124.63/x
  3. Step 3: Cross multiply
    72,955.74x = 100,680.47 × 41,124.63
  4. Step 4: Simplify right side
    72,955.74x = 4,140,447,076.98
  5. Step 5: Solve for x
    x = 4,140,447,076.98/72,955.74
  6. Step 6: Final answer
    x = 56,752.86

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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.