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Finding the Fourth Proportional to 324,122.65, 486,165.49 and 99,482.74

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Solution

The fourth proportional to 324,122.65, 486,165.49 and 99,482.74 is: 149,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,122.65 : 486,165.49 = 99,482.74 : x
  2. Step 2: Convert to fraction form
    324,122.65/486,165.49 = 99,482.74/x
  3. Step 3: Cross multiply
    324,122.65x = 486,165.49 × 99,482.74
  4. Step 4: Simplify right side
    324,122.65x = 48,365,075,038.64
  5. Step 5: Solve for x
    x = 48,365,075,038.64/324,122.65
  6. Step 6: Final answer
    x = 149,218.44

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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.