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Finding the Fourth Proportional to 324,210.75, 486,330.03 and 99,580.14

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Solution

The fourth proportional to 324,210.75, 486,330.03 and 99,580.14 is: 149,374.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,210.75 : 486,330.03 = 99,580.14 : x
  2. Step 2: Convert to fraction form
    324,210.75/486,330.03 = 99,580.14/x
  3. Step 3: Cross multiply
    324,210.75x = 486,330.03 × 99,580.14
  4. Step 4: Simplify right side
    324,210.75x = 48,428,812,473.60
  5. Step 5: Solve for x
    x = 48,428,812,473.60/324,210.75
  6. Step 6: Final answer
    x = 149,374.48

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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.