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Finding the Fourth Proportional to 236,253.90, 353,797.65 and 156,938.70

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Solution

The fourth proportional to 236,253.90, 353,797.65 and 156,938.70 is: 235,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,253.90 : 353,797.65 = 156,938.70 : x
  2. Step 2: Convert to fraction form
    236,253.90/353,797.65 = 156,938.70/x
  3. Step 3: Cross multiply
    236,253.90x = 353,797.65 × 156,938.70
  4. Step 4: Simplify right side
    236,253.90x = 55,524,543,254.06
  5. Step 5: Solve for x
    x = 55,524,543,254.06/236,253.90
  6. Step 6: Final answer
    x = 235,020.64

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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.