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Finding the Fourth Proportional to 415,567.88, 623,632.07 and 162,816.66

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Solution

The fourth proportional to 415,567.88, 623,632.07 and 162,816.66 is: 244,334.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,567.88 : 623,632.07 = 162,816.66 : x
  2. Step 2: Convert to fraction form
    415,567.88/623,632.07 = 162,816.66/x
  3. Step 3: Cross multiply
    415,567.88x = 623,632.07 × 162,816.66
  4. Step 4: Simplify right side
    415,567.88x = 101,537,689,892.20
  5. Step 5: Solve for x
    x = 101,537,689,892.20/415,567.88
  6. Step 6: Final answer
    x = 244,334.79

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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.