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Finding the Fourth Proportional to 174,031.40, 261,071.40 and 74,190.80

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Solution

The fourth proportional to 174,031.40, 261,071.40 and 74,190.80 is: 111,296.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,031.40 : 261,071.40 = 74,190.80 : x
  2. Step 2: Convert to fraction form
    174,031.40/261,071.40 = 74,190.80/x
  3. Step 3: Cross multiply
    174,031.40x = 261,071.40 × 74,190.80
  4. Step 4: Simplify right side
    174,031.40x = 19,369,096,023.12
  5. Step 5: Solve for x
    x = 19,369,096,023.12/174,031.40
  6. Step 6: Final answer
    x = 111,296.56

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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.