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Finding the Fourth Proportional to 118,495.47, 177,723.93 and 39,609.57

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Solution

The fourth proportional to 118,495.47, 177,723.93 and 39,609.57 is: 59,407.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,495.47 : 177,723.93 = 39,609.57 : x
  2. Step 2: Convert to fraction form
    118,495.47/177,723.93 = 39,609.57/x
  3. Step 3: Cross multiply
    118,495.47x = 177,723.93 × 39,609.57
  4. Step 4: Simplify right side
    118,495.47x = 7,039,568,446.01
  5. Step 5: Solve for x
    x = 7,039,568,446.01/118,495.47
  6. Step 6: Final answer
    x = 59,407.91

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1.5x scale

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.