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Finding the Fourth Proportional to 262,959.14, 362,909.10 and 155,563.70

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Solution

The fourth proportional to 262,959.14, 362,909.10 and 155,563.70 is: 214,692.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,959.14 : 362,909.10 = 155,563.70 : x
  2. Step 2: Convert to fraction form
    262,959.14/362,909.10 = 155,563.70/x
  3. Step 3: Cross multiply
    262,959.14x = 362,909.10 × 155,563.70
  4. Step 4: Simplify right side
    262,959.14x = 56,455,482,359.67
  5. Step 5: Solve for x
    x = 56,455,482,359.67/262,959.14
  6. Step 6: Final answer
    x = 214,692.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.