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Finding the Fourth Proportional to 223,771.01, 308,803.86 and 123,169.01

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Solution

The fourth proportional to 223,771.01, 308,803.86 and 123,169.01 is: 169,973.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,771.01 : 308,803.86 = 123,169.01 : x
  2. Step 2: Convert to fraction form
    223,771.01/308,803.86 = 123,169.01/x
  3. Step 3: Cross multiply
    223,771.01x = 308,803.86 × 123,169.01
  4. Step 4: Simplify right side
    223,771.01x = 38,035,064,176.36
  5. Step 5: Solve for x
    x = 38,035,064,176.36/223,771.01
  6. Step 6: Final answer
    x = 169,973.16

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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.