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Finding the Fourth Proportional to 319,534.56, 440,909.19 and 181,700.10

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Solution

The fourth proportional to 319,534.56, 440,909.19 and 181,700.10 is: 250,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,534.56 : 440,909.19 = 181,700.10 : x
  2. Step 2: Convert to fraction form
    319,534.56/440,909.19 = 181,700.10/x
  3. Step 3: Cross multiply
    319,534.56x = 440,909.19 × 181,700.10
  4. Step 4: Simplify right side
    319,534.56x = 80,113,243,913.92
  5. Step 5: Solve for x
    x = 80,113,243,913.92/319,534.56
  6. Step 6: Final answer
    x = 250,718.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.