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Finding the Fourth Proportional to 316,754.53, 437,121.33 and 173,519.66

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Solution

The fourth proportional to 316,754.53, 437,121.33 and 173,519.66 is: 239,457.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,754.53 : 437,121.33 = 173,519.66 : x
  2. Step 2: Convert to fraction form
    316,754.53/437,121.33 = 173,519.66/x
  3. Step 3: Cross multiply
    316,754.53x = 437,121.33 × 173,519.66
  4. Step 4: Simplify right side
    316,754.53x = 75,849,145,002.45
  5. Step 5: Solve for x
    x = 75,849,145,002.45/316,754.53
  6. Step 6: Final answer
    x = 239,457.18

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1.5x scale

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.