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Finding the Fourth Proportional to 167,421.60, 251,715.60 and 141,760.80

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Solution

The fourth proportional to 167,421.60, 251,715.60 and 141,760.80 is: 213,135.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,421.60 : 251,715.60 = 141,760.80 : x
  2. Step 2: Convert to fraction form
    167,421.60/251,715.60 = 141,760.80/x
  3. Step 3: Cross multiply
    167,421.60x = 251,715.60 × 141,760.80
  4. Step 4: Simplify right side
    167,421.60x = 35,683,404,828.48
  5. Step 5: Solve for x
    x = 35,683,404,828.48/167,421.60
  6. Step 6: Final answer
    x = 213,135.01

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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.