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Finding the Fourth Proportional to 262,683, 362,503.02 and 143,451

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Solution

The fourth proportional to 262,683, 362,503.02 and 143,451 is: 197,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,683 : 362,503.02 = 143,451 : x
  2. Step 2: Convert to fraction form
    262,683/362,503.02 = 143,451/x
  3. Step 3: Cross multiply
    262,683x = 362,503.02 × 143,451
  4. Step 4: Simplify right side
    262,683x = 52,001,420,722.02
  5. Step 5: Solve for x
    x = 52,001,420,722.02/262,683
  6. Step 6: Final answer
    x = 197,962.64

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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.