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Finding the Fourth Proportional to 75,008.96, 103,463.59 and 48,108.86

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Solution

The fourth proportional to 75,008.96, 103,463.59 and 48,108.86 is: 66,358.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,008.96 : 103,463.59 = 48,108.86 : x
  2. Step 2: Convert to fraction form
    75,008.96/103,463.59 = 48,108.86/x
  3. Step 3: Cross multiply
    75,008.96x = 103,463.59 × 48,108.86
  4. Step 4: Simplify right side
    75,008.96x = 4,977,515,366.41
  5. Step 5: Solve for x
    x = 4,977,515,366.41/75,008.96
  6. Step 6: Final answer
    x = 66,358.94

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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.