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Finding the Fourth Proportional to 171,966.70, 257,950.05 and 108,981.10

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Solution

The fourth proportional to 171,966.70, 257,950.05 and 108,981.10 is: 163,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,966.70 : 257,950.05 = 108,981.10 : x
  2. Step 2: Convert to fraction form
    171,966.70/257,950.05 = 108,981.10/x
  3. Step 3: Cross multiply
    171,966.70x = 257,950.05 × 108,981.10
  4. Step 4: Simplify right side
    171,966.70x = 28,111,680,194.06
  5. Step 5: Solve for x
    x = 28,111,680,194.06/171,966.70
  6. Step 6: Final answer
    x = 163,471.65

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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.