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Finding the Fourth Proportional to 347,897.70, 521,846.55 and 111,248.10

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Solution

The fourth proportional to 347,897.70, 521,846.55 and 111,248.10 is: 166,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,897.70 : 521,846.55 = 111,248.10 : x
  2. Step 2: Convert to fraction form
    347,897.70/521,846.55 = 111,248.10/x
  3. Step 3: Cross multiply
    347,897.70x = 521,846.55 × 111,248.10
  4. Step 4: Simplify right side
    347,897.70x = 58,054,437,179.06
  5. Step 5: Solve for x
    x = 58,054,437,179.06/347,897.70
  6. Step 6: Final answer
    x = 166,872.15

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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.