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Finding the Fourth Proportional to 108,758.38, 150,085.90 and 63,432.81

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Solution

The fourth proportional to 108,758.38, 150,085.90 and 63,432.81 is: 87,536.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,758.38 : 150,085.90 = 63,432.81 : x
  2. Step 2: Convert to fraction form
    108,758.38/150,085.90 = 63,432.81/x
  3. Step 3: Cross multiply
    108,758.38x = 150,085.90 × 63,432.81
  4. Step 4: Simplify right side
    108,758.38x = 9,520,370,378.38
  5. Step 5: Solve for x
    x = 9,520,370,378.38/108,758.38
  6. Step 6: Final answer
    x = 87,536.89

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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.