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Finding the Fourth Proportional to 159,203.90, 238,613.60 and 70,356.62

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Solution

The fourth proportional to 159,203.90, 238,613.60 and 70,356.62 is: 105,449.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,203.90 : 238,613.60 = 70,356.62 : x
  2. Step 2: Convert to fraction form
    159,203.90/238,613.60 = 70,356.62/x
  3. Step 3: Cross multiply
    159,203.90x = 238,613.60 × 70,356.62
  4. Step 4: Simplify right side
    159,203.90x = 16,788,044,837.18
  5. Step 5: Solve for x
    x = 16,788,044,837.18/159,203.90
  6. Step 6: Final answer
    x = 105,449.96

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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.