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Finding the Fourth Proportional to 108,596.30, 149,838.45 and 65,582.79

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Solution

The fourth proportional to 108,596.30, 149,838.45 and 65,582.79 is: 90,489.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,596.30 : 149,838.45 = 65,582.79 : x
  2. Step 2: Convert to fraction form
    108,596.30/149,838.45 = 65,582.79/x
  3. Step 3: Cross multiply
    108,596.30x = 149,838.45 × 65,582.79
  4. Step 4: Simplify right side
    108,596.30x = 9,826,823,600.28
  5. Step 5: Solve for x
    x = 9,826,823,600.28/108,596.30
  6. Step 6: Final answer
    x = 90,489.49

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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.