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Finding the Fourth Proportional to 118,409.68, 177,616.48 and 39,524.32

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Solution

The fourth proportional to 118,409.68, 177,616.48 and 39,524.32 is: 59,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,409.68 : 177,616.48 = 39,524.32 : x
  2. Step 2: Convert to fraction form
    118,409.68/177,616.48 = 39,524.32/x
  3. Step 3: Cross multiply
    118,409.68x = 177,616.48 × 39,524.32
  4. Step 4: Simplify right side
    118,409.68x = 7,020,170,592.79
  5. Step 5: Solve for x
    x = 7,020,170,592.79/118,409.68
  6. Step 6: Final answer
    x = 59,287.13

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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.