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Finding the Fourth Proportional to 200,607.30, 300,991.95 and 88,308.90

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Solution

The fourth proportional to 200,607.30, 300,991.95 and 88,308.90 is: 132,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,607.30 : 300,991.95 = 88,308.90 : x
  2. Step 2: Convert to fraction form
    200,607.30/300,991.95 = 88,308.90/x
  3. Step 3: Cross multiply
    200,607.30x = 300,991.95 × 88,308.90
  4. Step 4: Simplify right side
    200,607.30x = 26,580,268,013.36
  5. Step 5: Solve for x
    x = 26,580,268,013.36/200,607.30
  6. Step 6: Final answer
    x = 132,499.01

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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.