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Finding the Fourth Proportional to 253,114.42, 379,527.90 and 103,179.10

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Solution

The fourth proportional to 253,114.42, 379,527.90 and 103,179.10 is: 154,710.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,114.42 : 379,527.90 = 103,179.10 : x
  2. Step 2: Convert to fraction form
    253,114.42/379,527.90 = 103,179.10/x
  3. Step 3: Cross multiply
    253,114.42x = 379,527.90 × 103,179.10
  4. Step 4: Simplify right side
    253,114.42x = 39,159,347,146.89
  5. Step 5: Solve for x
    x = 39,159,347,146.89/253,114.42
  6. Step 6: Final answer
    x = 154,710.06

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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.