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Finding the Fourth Proportional to 145,857.42, 218,786.12 and 35,049.42

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Solution

The fourth proportional to 145,857.42, 218,786.12 and 35,049.42 is: 52,574.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,857.42 : 218,786.12 = 35,049.42 : x
  2. Step 2: Convert to fraction form
    145,857.42/218,786.12 = 35,049.42/x
  3. Step 3: Cross multiply
    145,857.42x = 218,786.12 × 35,049.42
  4. Step 4: Simplify right side
    145,857.42x = 7,668,326,610.05
  5. Step 5: Solve for x
    x = 7,668,326,610.05/145,857.42
  6. Step 6: Final answer
    x = 52,574.13

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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.