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Finding the Fourth Proportional to 104,065.92, 156,128.04 and 41,780.16

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Solution

The fourth proportional to 104,065.92, 156,128.04 and 41,780.16 is: 62,681.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,065.92 : 156,128.04 = 41,780.16 : x
  2. Step 2: Convert to fraction form
    104,065.92/156,128.04 = 41,780.16/x
  3. Step 3: Cross multiply
    104,065.92x = 156,128.04 × 41,780.16
  4. Step 4: Simplify right side
    104,065.92x = 6,523,054,491.69
  5. Step 5: Solve for x
    x = 6,523,054,491.69/104,065.92
  6. Step 6: Final answer
    x = 62,681.95

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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.