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Finding the Fourth Proportional to 236,331, 354,496.50 and 70,119

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Solution

The fourth proportional to 236,331, 354,496.50 and 70,119 is: 105,178.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,331 : 354,496.50 = 70,119 : x
  2. Step 2: Convert to fraction form
    236,331/354,496.50 = 70,119/x
  3. Step 3: Cross multiply
    236,331x = 354,496.50 × 70,119
  4. Step 4: Simplify right side
    236,331x = 24,856,940,083.50
  5. Step 5: Solve for x
    x = 24,856,940,083.50/236,331
  6. Step 6: Final answer
    x = 105,178.50

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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.