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Finding the Fourth Proportional to 415,332.88, 623,051.56 and 162,580.88

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Solution

The fourth proportional to 415,332.88, 623,051.56 and 162,580.88 is: 243,891.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,332.88 : 623,051.56 = 162,580.88 : x
  2. Step 2: Convert to fraction form
    415,332.88/623,051.56 = 162,580.88/x
  3. Step 3: Cross multiply
    415,332.88x = 623,051.56 × 162,580.88
  4. Step 4: Simplify right side
    415,332.88x = 101,296,270,910.17
  5. Step 5: Solve for x
    x = 101,296,270,910.17/415,332.88
  6. Step 6: Final answer
    x = 243,891.77

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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.