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Finding the Fourth Proportional to 98,633.67, 147,713.25 and 56,385.69

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Solution

The fourth proportional to 98,633.67, 147,713.25 and 56,385.69 is: 84,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,633.67 : 147,713.25 = 56,385.69 : x
  2. Step 2: Convert to fraction form
    98,633.67/147,713.25 = 56,385.69/x
  3. Step 3: Cross multiply
    98,633.67x = 147,713.25 × 56,385.69
  4. Step 4: Simplify right side
    98,633.67x = 8,328,913,523.39
  5. Step 5: Solve for x
    x = 8,328,913,523.39/98,633.67
  6. Step 6: Final answer
    x = 84,442.90

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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.