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Finding the Fourth Proportional to 118,685.46, 178,022.01 and 29,939.76

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Solution

The fourth proportional to 118,685.46, 178,022.01 and 29,939.76 is: 44,908.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,685.46 : 178,022.01 = 29,939.76 : x
  2. Step 2: Convert to fraction form
    118,685.46/178,022.01 = 29,939.76/x
  3. Step 3: Cross multiply
    118,685.46x = 178,022.01 × 29,939.76
  4. Step 4: Simplify right side
    118,685.46x = 5,329,936,254.12
  5. Step 5: Solve for x
    x = 5,329,936,254.12/118,685.46
  6. Step 6: Final answer
    x = 44,908.08

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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.