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Finding the Fourth Proportional to 167,587.60, 251,381.40 and 166,421.20

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Solution

The fourth proportional to 167,587.60, 251,381.40 and 166,421.20 is: 249,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,587.60 : 251,381.40 = 166,421.20 : x
  2. Step 2: Convert to fraction form
    167,587.60/251,381.40 = 166,421.20/x
  3. Step 3: Cross multiply
    167,587.60x = 251,381.40 × 166,421.20
  4. Step 4: Simplify right side
    167,587.60x = 41,835,194,245.68
  5. Step 5: Solve for x
    x = 41,835,194,245.68/167,587.60
  6. Step 6: Final answer
    x = 249,631.80

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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.