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Finding the Fourth Proportional to 267,991.65, 369,834.30 and 153,280.89

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Solution

The fourth proportional to 267,991.65, 369,834.30 and 153,280.89 is: 211,530.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,991.65 : 369,834.30 = 153,280.89 : x
  2. Step 2: Convert to fraction form
    267,991.65/369,834.30 = 153,280.89/x
  3. Step 3: Cross multiply
    267,991.65x = 369,834.30 × 153,280.89
  4. Step 4: Simplify right side
    267,991.65x = 56,688,530,656.53
  5. Step 5: Solve for x
    x = 56,688,530,656.53/267,991.65
  6. Step 6: Final answer
    x = 211,530.96

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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.