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Finding the Fourth Proportional to 159,344.40, 238,905.81 and 70,549.41

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Solution

The fourth proportional to 159,344.40, 238,905.81 and 70,549.41 is: 105,775.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,344.40 : 238,905.81 = 70,549.41 : x
  2. Step 2: Convert to fraction form
    159,344.40/238,905.81 = 70,549.41/x
  3. Step 3: Cross multiply
    159,344.40x = 238,905.81 × 70,549.41
  4. Step 4: Simplify right side
    159,344.40x = 16,854,663,941.07
  5. Step 5: Solve for x
    x = 16,854,663,941.07/159,344.40
  6. Step 6: Final answer
    x = 105,775.06

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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.