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Finding the Fourth Proportional to 302,551.90, 453,136.65 and 178,135.90

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Solution

The fourth proportional to 302,551.90, 453,136.65 and 178,135.90 is: 266,796.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,551.90 : 453,136.65 = 178,135.90 : x
  2. Step 2: Convert to fraction form
    302,551.90/453,136.65 = 178,135.90/x
  3. Step 3: Cross multiply
    302,551.90x = 453,136.65 × 178,135.90
  4. Step 4: Simplify right side
    302,551.90x = 80,719,904,970.74
  5. Step 5: Solve for x
    x = 80,719,904,970.74/302,551.90
  6. Step 6: Final answer
    x = 266,796.89

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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.