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Finding the Fourth Proportional to 250,389, 375,731.10 and 92,728.17

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Solution

The fourth proportional to 250,389, 375,731.10 and 92,728.17 is: 139,146.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,389 : 375,731.10 = 92,728.17 : x
  2. Step 2: Convert to fraction form
    250,389/375,731.10 = 92,728.17/x
  3. Step 3: Cross multiply
    250,389x = 375,731.10 × 92,728.17
  4. Step 4: Simplify right side
    250,389x = 34,840,857,315.09
  5. Step 5: Solve for x
    x = 34,840,857,315.09/250,389
  6. Step 6: Final answer
    x = 139,146.92

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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.