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Finding the Fourth Proportional to 118,531.86, 177,797.94 and 48,411.17

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Solution

The fourth proportional to 118,531.86, 177,797.94 and 48,411.17 is: 72,616.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,531.86 : 177,797.94 = 48,411.17 : x
  2. Step 2: Convert to fraction form
    118,531.86/177,797.94 = 48,411.17/x
  3. Step 3: Cross multiply
    118,531.86x = 177,797.94 × 48,411.17
  4. Step 4: Simplify right side
    118,531.86x = 8,607,405,895.20
  5. Step 5: Solve for x
    x = 8,607,405,895.20/118,531.86
  6. Step 6: Final answer
    x = 72,616.82

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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.