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Finding the Fourth Proportional to 334,536.80, 501,805.20 and 109,931.90

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Solution

The fourth proportional to 334,536.80, 501,805.20 and 109,931.90 is: 164,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,536.80 : 501,805.20 = 109,931.90 : x
  2. Step 2: Convert to fraction form
    334,536.80/501,805.20 = 109,931.90/x
  3. Step 3: Cross multiply
    334,536.80x = 501,805.20 × 109,931.90
  4. Step 4: Simplify right side
    334,536.80x = 55,164,399,065.88
  5. Step 5: Solve for x
    x = 55,164,399,065.88/334,536.80
  6. Step 6: Final answer
    x = 164,897.85

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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.