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Finding the Fourth Proportional to 218,808.99, 301,874.96 and 147,075.39

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Solution

The fourth proportional to 218,808.99, 301,874.96 and 147,075.39 is: 202,909.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,808.99 : 301,874.96 = 147,075.39 : x
  2. Step 2: Convert to fraction form
    218,808.99/301,874.96 = 147,075.39/x
  3. Step 3: Cross multiply
    218,808.99x = 301,874.96 × 147,075.39
  4. Step 4: Simplify right side
    218,808.99x = 44,398,377,840.92
  5. Step 5: Solve for x
    x = 44,398,377,840.92/218,808.99
  6. Step 6: Final answer
    x = 202,909.29

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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.