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Finding the Fourth Proportional to 183,128.70, 274,725.45 and 64,868.70

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Solution

The fourth proportional to 183,128.70, 274,725.45 and 64,868.70 is: 97,314.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,128.70 : 274,725.45 = 64,868.70 : x
  2. Step 2: Convert to fraction form
    183,128.70/274,725.45 = 64,868.70/x
  3. Step 3: Cross multiply
    183,128.70x = 274,725.45 × 64,868.70
  4. Step 4: Simplify right side
    183,128.70x = 17,821,082,798.42
  5. Step 5: Solve for x
    x = 17,821,082,798.42/183,128.70
  6. Step 6: Final answer
    x = 97,314.53

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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.