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Finding the Fourth Proportional to 262,402.90, 362,105.58 and 155,007.44

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Solution

The fourth proportional to 262,402.90, 362,105.58 and 155,007.44 is: 213,904.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,402.90 : 362,105.58 = 155,007.44 : x
  2. Step 2: Convert to fraction form
    262,402.90/362,105.58 = 155,007.44/x
  3. Step 3: Cross multiply
    262,402.90x = 362,105.58 × 155,007.44
  4. Step 4: Simplify right side
    262,402.90x = 56,129,058,965.52
  5. Step 5: Solve for x
    x = 56,129,058,965.52/262,402.90
  6. Step 6: Final answer
    x = 213,904.11

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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.