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Finding the Fourth Proportional to 267,706.83, 369,384.30 and 153,021.81

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Solution

The fourth proportional to 267,706.83, 369,384.30 and 153,021.81 is: 211,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,706.83 : 369,384.30 = 153,021.81 : x
  2. Step 2: Convert to fraction form
    267,706.83/369,384.30 = 153,021.81/x
  3. Step 3: Cross multiply
    267,706.83x = 369,384.30 × 153,021.81
  4. Step 4: Simplify right side
    267,706.83x = 56,523,854,171.58
  5. Step 5: Solve for x
    x = 56,523,854,171.58/267,706.83
  6. Step 6: Final answer
    x = 211,140.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.