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Finding the Fourth Proportional to 108,573.84, 162,835.02 and 61,209.90

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Solution

The fourth proportional to 108,573.84, 162,835.02 and 61,209.90 is: 91,800.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,573.84 : 162,835.02 = 61,209.90 : x
  2. Step 2: Convert to fraction form
    108,573.84/162,835.02 = 61,209.90/x
  3. Step 3: Cross multiply
    108,573.84x = 162,835.02 × 61,209.90
  4. Step 4: Simplify right side
    108,573.84x = 9,967,115,290.70
  5. Step 5: Solve for x
    x = 9,967,115,290.70/108,573.84
  6. Step 6: Final answer
    x = 91,800.34

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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.