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Finding the Fourth Proportional to 172,178.79, 256,966.17 and 167,694.76

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Solution

The fourth proportional to 172,178.79, 256,966.17 and 167,694.76 is: 250,274.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,178.79 : 256,966.17 = 167,694.76 : x
  2. Step 2: Convert to fraction form
    172,178.79/256,966.17 = 167,694.76/x
  3. Step 3: Cross multiply
    172,178.79x = 256,966.17 × 167,694.76
  4. Step 4: Simplify right side
    172,178.79x = 43,091,880,590.83
  5. Step 5: Solve for x
    x = 43,091,880,590.83/172,178.79
  6. Step 6: Final answer
    x = 250,274.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.