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Finding the Fourth Proportional to 415,924.80, 623,885.16 and 163,026.60

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Solution

The fourth proportional to 415,924.80, 623,885.16 and 163,026.60 is: 244,539.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,924.80 : 623,885.16 = 163,026.60 : x
  2. Step 2: Convert to fraction form
    415,924.80/623,885.16 = 163,026.60/x
  3. Step 3: Cross multiply
    415,924.80x = 623,885.16 × 163,026.60
  4. Step 4: Simplify right side
    415,924.80x = 101,709,876,425.26
  5. Step 5: Solve for x
    x = 101,709,876,425.26/415,924.80
  6. Step 6: Final answer
    x = 244,539.10

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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.