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Finding the Fourth Proportional to 201,729.90, 302,886.45 and 152,157.90

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Solution

The fourth proportional to 201,729.90, 302,886.45 and 152,157.90 is: 228,456.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,729.90 : 302,886.45 = 152,157.90 : x
  2. Step 2: Convert to fraction form
    201,729.90/302,886.45 = 152,157.90/x
  3. Step 3: Cross multiply
    201,729.90x = 302,886.45 × 152,157.90
  4. Step 4: Simplify right side
    201,729.90x = 46,086,566,170.46
  5. Step 5: Solve for x
    x = 46,086,566,170.46/201,729.90
  6. Step 6: Final answer
    x = 228,456.79

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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.