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Finding the Fourth Proportional to 200,363.02, 300,655.21 and 111,666.51

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Solution

The fourth proportional to 200,363.02, 300,655.21 and 111,666.51 is: 167,561.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,363.02 : 300,655.21 = 111,666.51 : x
  2. Step 2: Convert to fraction form
    200,363.02/300,655.21 = 111,666.51/x
  3. Step 3: Cross multiply
    200,363.02x = 300,655.21 × 111,666.51
  4. Step 4: Simplify right side
    200,363.02x = 33,573,118,014.02
  5. Step 5: Solve for x
    x = 33,573,118,014.02/200,363.02
  6. Step 6: Final answer
    x = 167,561.45

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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.