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Finding the Fourth Proportional to 94,671.92, 130,642.68 and 51,648.86

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Solution

The fourth proportional to 94,671.92, 130,642.68 and 51,648.86 is: 71,272.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,671.92 : 130,642.68 = 51,648.86 : x
  2. Step 2: Convert to fraction form
    94,671.92/130,642.68 = 51,648.86/x
  3. Step 3: Cross multiply
    94,671.92x = 130,642.68 × 51,648.86
  4. Step 4: Simplify right side
    94,671.92x = 6,747,545,489.34
  5. Step 5: Solve for x
    x = 6,747,545,489.34/94,671.92
  6. Step 6: Final answer
    x = 71,272.93

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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.