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Finding the Fourth Proportional to 82,800.90, 124,201.35 and 49,623.30

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Solution

The fourth proportional to 82,800.90, 124,201.35 and 49,623.30 is: 74,434.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,800.90 : 124,201.35 = 49,623.30 : x
  2. Step 2: Convert to fraction form
    82,800.90/124,201.35 = 49,623.30/x
  3. Step 3: Cross multiply
    82,800.90x = 124,201.35 × 49,623.30
  4. Step 4: Simplify right side
    82,800.90x = 6,163,280,851.46
  5. Step 5: Solve for x
    x = 6,163,280,851.46/82,800.90
  6. Step 6: Final answer
    x = 74,434.95

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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.