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Finding the Fourth Proportional to 238,059.50, 357,143.60 and 103,145.96

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Solution

The fourth proportional to 238,059.50, 357,143.60 and 103,145.96 is: 154,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,059.50 : 357,143.60 = 103,145.96 : x
  2. Step 2: Convert to fraction form
    238,059.50/357,143.60 = 103,145.96/x
  3. Step 3: Cross multiply
    238,059.50x = 357,143.60 × 103,145.96
  4. Step 4: Simplify right side
    238,059.50x = 36,837,920,630.58
  5. Step 5: Solve for x
    x = 36,837,920,630.58/238,059.50
  6. Step 6: Final answer
    x = 154,742.50

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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.