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Finding the Fourth Proportional to 108,347.40, 162,650.70 and 61,000.20

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Solution

The fourth proportional to 108,347.40, 162,650.70 and 61,000.20 is: 91,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,347.40 : 162,650.70 = 61,000.20 : x
  2. Step 2: Convert to fraction form
    108,347.40/162,650.70 = 61,000.20/x
  3. Step 3: Cross multiply
    108,347.40x = 162,650.70 × 61,000.20
  4. Step 4: Simplify right side
    108,347.40x = 9,921,725,230.14
  5. Step 5: Solve for x
    x = 9,921,725,230.14/108,347.40
  6. Step 6: Final answer
    x = 91,573.27

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1.5x scale

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.