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Finding the Fourth Proportional to 117,381.54, 176,074.17 and 28,636.74

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Solution

The fourth proportional to 117,381.54, 176,074.17 and 28,636.74 is: 42,955.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,381.54 : 176,074.17 = 28,636.74 : x
  2. Step 2: Convert to fraction form
    117,381.54/176,074.17 = 28,636.74/x
  3. Step 3: Cross multiply
    117,381.54x = 176,074.17 × 28,636.74
  4. Step 4: Simplify right side
    117,381.54x = 5,042,190,227.01
  5. Step 5: Solve for x
    x = 5,042,190,227.01/117,381.54
  6. Step 6: Final answer
    x = 42,955.56

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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.