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Finding the Fourth Proportional to 250,719.84, 375,130.44 and 154,679.76

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Solution

The fourth proportional to 250,719.84, 375,130.44 and 154,679.76 is: 231,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,719.84 : 375,130.44 = 154,679.76 : x
  2. Step 2: Convert to fraction form
    250,719.84/375,130.44 = 154,679.76/x
  3. Step 3: Cross multiply
    250,719.84x = 375,130.44 × 154,679.76
  4. Step 4: Simplify right side
    250,719.84x = 58,025,086,427.89
  5. Step 5: Solve for x
    x = 58,025,086,427.89/250,719.84
  6. Step 6: Final answer
    x = 231,433.96

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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.