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Finding the Fourth Proportional to 302,564.90, 453,847.35 and 80,948.90

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Solution

The fourth proportional to 302,564.90, 453,847.35 and 80,948.90 is: 121,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,564.90 : 453,847.35 = 80,948.90 : x
  2. Step 2: Convert to fraction form
    302,564.90/453,847.35 = 80,948.90/x
  3. Step 3: Cross multiply
    302,564.90x = 453,847.35 × 80,948.90
  4. Step 4: Simplify right side
    302,564.90x = 36,738,443,750.42
  5. Step 5: Solve for x
    x = 36,738,443,750.42/302,564.90
  6. Step 6: Final answer
    x = 121,423.35

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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.