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Finding the Fourth Proportional to 118,656.45, 177,881.36 and 48,491.01

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Solution

The fourth proportional to 118,656.45, 177,881.36 and 48,491.01 is: 72,694.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,656.45 : 177,881.36 = 48,491.01 : x
  2. Step 2: Convert to fraction form
    118,656.45/177,881.36 = 48,491.01/x
  3. Step 3: Cross multiply
    118,656.45x = 177,881.36 × 48,491.01
  4. Step 4: Simplify right side
    118,656.45x = 8,625,646,564.12
  5. Step 5: Solve for x
    x = 8,625,646,564.12/118,656.45
  6. Step 6: Final answer
    x = 72,694.29

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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.