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Finding the Fourth Proportional to 172,933.32, 257,680.90 and 154,068.42

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Solution

The fourth proportional to 172,933.32, 257,680.90 and 154,068.42 is: 229,571.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,933.32 : 257,680.90 = 154,068.42 : x
  2. Step 2: Convert to fraction form
    172,933.32/257,680.90 = 154,068.42/x
  3. Step 3: Cross multiply
    172,933.32x = 257,680.90 × 154,068.42
  4. Step 4: Simplify right side
    172,933.32x = 39,700,489,127.18
  5. Step 5: Solve for x
    x = 39,700,489,127.18/172,933.32
  6. Step 6: Final answer
    x = 229,571.08

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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.