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Finding the Fourth Proportional to 200,781.02, 301,199.31 and 67,699.34

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Solution

The fourth proportional to 200,781.02, 301,199.31 and 67,699.34 is: 101,558.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,781.02 : 301,199.31 = 67,699.34 : x
  2. Step 2: Convert to fraction form
    200,781.02/301,199.31 = 67,699.34/x
  3. Step 3: Cross multiply
    200,781.02x = 301,199.31 × 67,699.34
  4. Step 4: Simplify right side
    200,781.02x = 20,390,994,495.46
  5. Step 5: Solve for x
    x = 20,390,994,495.46/200,781.02
  6. Step 6: Final answer
    x = 101,558.38

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1.5x scale

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.