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Finding the Fourth Proportional to 71,594.80, 107,440.80 and 40,004.80

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Solution

The fourth proportional to 71,594.80, 107,440.80 and 40,004.80 is: 60,034.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,594.80 : 107,440.80 = 40,004.80 : x
  2. Step 2: Convert to fraction form
    71,594.80/107,440.80 = 40,004.80/x
  3. Step 3: Cross multiply
    71,594.80x = 107,440.80 × 40,004.80
  4. Step 4: Simplify right side
    71,594.80x = 4,298,147,715.84
  5. Step 5: Solve for x
    x = 4,298,147,715.84/71,594.80
  6. Step 6: Final answer
    x = 60,034.36

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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.