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Finding the Fourth Proportional to 302,610.10, 453,915.15 and 196,321.90

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Solution

The fourth proportional to 302,610.10, 453,915.15 and 196,321.90 is: 294,482.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,610.10 : 453,915.15 = 196,321.90 : x
  2. Step 2: Convert to fraction form
    302,610.10/453,915.15 = 196,321.90/x
  3. Step 3: Cross multiply
    302,610.10x = 453,915.15 × 196,321.90
  4. Step 4: Simplify right side
    302,610.10x = 89,113,484,686.79
  5. Step 5: Solve for x
    x = 89,113,484,686.79/302,610.10
  6. Step 6: Final answer
    x = 294,482.85

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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.