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Finding the Fourth Proportional to 132,339.16, 198,519.66 and 42,395

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Solution

The fourth proportional to 132,339.16, 198,519.66 and 42,395 is: 63,596.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,339.16 : 198,519.66 = 42,395 : x
  2. Step 2: Convert to fraction form
    132,339.16/198,519.66 = 42,395/x
  3. Step 3: Cross multiply
    132,339.16x = 198,519.66 × 42,395
  4. Step 4: Simplify right side
    132,339.16x = 8,416,240,985.70
  5. Step 5: Solve for x
    x = 8,416,240,985.70/132,339.16
  6. Step 6: Final answer
    x = 63,596.00

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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.