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Finding the Fourth Proportional to 236,353.98, 354,530.78 and 70,141.98

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Solution

The fourth proportional to 236,353.98, 354,530.78 and 70,141.98 is: 105,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,353.98 : 354,530.78 = 70,141.98 : x
  2. Step 2: Convert to fraction form
    236,353.98/354,530.78 = 70,141.98/x
  3. Step 3: Cross multiply
    236,353.98x = 354,530.78 × 70,141.98
  4. Step 4: Simplify right side
    236,353.98x = 24,867,490,880.14
  5. Step 5: Solve for x
    x = 24,867,490,880.14/236,353.98
  6. Step 6: Final answer
    x = 105,212.91

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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.