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Finding the Fourth Proportional to 242,905.80, 365,136.30 and 173,267.40

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Solution

The fourth proportional to 242,905.80, 365,136.30 and 173,267.40 is: 260,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,905.80 : 365,136.30 = 173,267.40 : x
  2. Step 2: Convert to fraction form
    242,905.80/365,136.30 = 173,267.40/x
  3. Step 3: Cross multiply
    242,905.80x = 365,136.30 × 173,267.40
  4. Step 4: Simplify right side
    242,905.80x = 63,266,217,346.62
  5. Step 5: Solve for x
    x = 63,266,217,346.62/242,905.80
  6. Step 6: Final answer
    x = 260,455.77

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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.