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Finding the Fourth Proportional to 223,679.18, 308,575.56 and 132,983.68

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Solution

The fourth proportional to 223,679.18, 308,575.56 and 132,983.68 is: 183,457.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,679.18 : 308,575.56 = 132,983.68 : x
  2. Step 2: Convert to fraction form
    223,679.18/308,575.56 = 132,983.68/x
  3. Step 3: Cross multiply
    223,679.18x = 308,575.56 × 132,983.68
  4. Step 4: Simplify right side
    223,679.18x = 41,035,513,526.86
  5. Step 5: Solve for x
    x = 41,035,513,526.86/223,679.18
  6. Step 6: Final answer
    x = 183,457.01

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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.