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Finding the Fourth Proportional to 363,133.53, 501,116.90 and 201,985.11

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Solution

The fourth proportional to 363,133.53, 501,116.90 and 201,985.11 is: 278,735.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,133.53 : 501,116.90 = 201,985.11 : x
  2. Step 2: Convert to fraction form
    363,133.53/501,116.90 = 201,985.11/x
  3. Step 3: Cross multiply
    363,133.53x = 501,116.90 × 201,985.11
  4. Step 4: Simplify right side
    363,133.53x = 101,218,151,159.43
  5. Step 5: Solve for x
    x = 101,218,151,159.43/363,133.53
  6. Step 6: Final answer
    x = 278,735.35

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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.