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Finding the Fourth Proportional to 108,370.65, 149,552.39 and 63,074.84

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Solution

The fourth proportional to 108,370.65, 149,552.39 and 63,074.84 is: 87,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,370.65 : 149,552.39 = 63,074.84 : x
  2. Step 2: Convert to fraction form
    108,370.65/149,552.39 = 63,074.84/x
  3. Step 3: Cross multiply
    108,370.65x = 149,552.39 × 63,074.84
  4. Step 4: Simplify right side
    108,370.65x = 9,432,993,070.87
  5. Step 5: Solve for x
    x = 9,432,993,070.87/108,370.65
  6. Step 6: Final answer
    x = 87,043.80

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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.