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Finding the Fourth Proportional to 159,323.40, 238,985.10 and 111,630.60

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Solution

The fourth proportional to 159,323.40, 238,985.10 and 111,630.60 is: 167,445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,323.40 : 238,985.10 = 111,630.60 : x
  2. Step 2: Convert to fraction form
    159,323.40/238,985.10 = 111,630.60/x
  3. Step 3: Cross multiply
    159,323.40x = 238,985.10 × 111,630.60
  4. Step 4: Simplify right side
    159,323.40x = 26,678,050,104.06
  5. Step 5: Solve for x
    x = 26,678,050,104.06/159,323.40
  6. Step 6: Final answer
    x = 167,445.90

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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.