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Finding the Fourth Proportional to 162,307.33, 243,462.21 and 49,988.48

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Solution

The fourth proportional to 162,307.33, 243,462.21 and 49,988.48 is: 74,983.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,307.33 : 243,462.21 = 49,988.48 : x
  2. Step 2: Convert to fraction form
    162,307.33/243,462.21 = 49,988.48/x
  3. Step 3: Cross multiply
    162,307.33x = 243,462.21 × 49,988.48
  4. Step 4: Simplify right side
    162,307.33x = 12,170,304,410.57
  5. Step 5: Solve for x
    x = 12,170,304,410.57/162,307.33
  6. Step 6: Final answer
    x = 74,983.09

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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.