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Finding the Fourth Proportional to 183,309.12, 275,007.36 and 64,990.88

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Solution

The fourth proportional to 183,309.12, 275,007.36 and 64,990.88 is: 97,501.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,309.12 : 275,007.36 = 64,990.88 : x
  2. Step 2: Convert to fraction form
    183,309.12/275,007.36 = 64,990.88/x
  3. Step 3: Cross multiply
    183,309.12x = 275,007.36 × 64,990.88
  4. Step 4: Simplify right side
    183,309.12x = 17,872,970,332.88
  5. Step 5: Solve for x
    x = 17,872,970,332.88/183,309.12
  6. Step 6: Final answer
    x = 97,501.81

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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.