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Finding the Fourth Proportional to 335,817.40, 503,818.08 and 99,159.88

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Solution

The fourth proportional to 335,817.40, 503,818.08 and 99,159.88 is: 148,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,817.40 : 503,818.08 = 99,159.88 : x
  2. Step 2: Convert to fraction form
    335,817.40/503,818.08 = 99,159.88/x
  3. Step 3: Cross multiply
    335,817.40x = 503,818.08 × 99,159.88
  4. Step 4: Simplify right side
    335,817.40x = 49,958,540,354.63
  5. Step 5: Solve for x
    x = 49,958,540,354.63/335,817.40
  6. Step 6: Final answer
    x = 148,766.98

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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.