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Finding the Fourth Proportional to 157,773.68, 217,798.02 and 122,769.12

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Solution

The fourth proportional to 157,773.68, 217,798.02 and 122,769.12 is: 169,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,773.68 : 217,798.02 = 122,769.12 : x
  2. Step 2: Convert to fraction form
    157,773.68/217,798.02 = 122,769.12/x
  3. Step 3: Cross multiply
    157,773.68x = 217,798.02 × 122,769.12
  4. Step 4: Simplify right side
    157,773.68x = 26,738,871,253.14
  5. Step 5: Solve for x
    x = 26,738,871,253.14/157,773.68
  6. Step 6: Final answer
    x = 169,476.13

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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.