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Finding the Fourth Proportional to 108,650.34, 149,946.84 and 60,912.90

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Solution

The fourth proportional to 108,650.34, 149,946.84 and 60,912.90 is: 84,065.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,650.34 : 149,946.84 = 60,912.90 : x
  2. Step 2: Convert to fraction form
    108,650.34/149,946.84 = 60,912.90/x
  3. Step 3: Cross multiply
    108,650.34x = 149,946.84 × 60,912.90
  4. Step 4: Simplify right side
    108,650.34x = 9,133,696,870.24
  5. Step 5: Solve for x
    x = 9,133,696,870.24/108,650.34
  6. Step 6: Final answer
    x = 84,065.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.