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Finding the Fourth Proportional to 253,306.17, 349,505.28 and 151,311.67

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Solution

The fourth proportional to 253,306.17, 349,505.28 and 151,311.67 is: 208,775.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,306.17 : 349,505.28 = 151,311.67 : x
  2. Step 2: Convert to fraction form
    253,306.17/349,505.28 = 151,311.67/x
  3. Step 3: Cross multiply
    253,306.17x = 349,505.28 × 151,311.67
  4. Step 4: Simplify right side
    253,306.17x = 52,884,227,699.84
  5. Step 5: Solve for x
    x = 52,884,227,699.84/253,306.17
  6. Step 6: Final answer
    x = 208,775.91

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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.