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Finding the Fourth Proportional to 118,344.92, 177,072.66 and 70,784.96

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Solution

The fourth proportional to 118,344.92, 177,072.66 and 70,784.96 is: 105,911.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,344.92 : 177,072.66 = 70,784.96 : x
  2. Step 2: Convert to fraction form
    118,344.92/177,072.66 = 70,784.96/x
  3. Step 3: Cross multiply
    118,344.92x = 177,072.66 × 70,784.96
  4. Step 4: Simplify right side
    118,344.92x = 12,534,081,155.19
  5. Step 5: Solve for x
    x = 12,534,081,155.19/118,344.92
  6. Step 6: Final answer
    x = 105,911.44

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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.