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Finding the Fourth Proportional to 296,912.78, 409,765.56 and 162,802.70

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Solution

The fourth proportional to 296,912.78, 409,765.56 and 162,802.70 is: 224,681.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,912.78 : 409,765.56 = 162,802.70 : x
  2. Step 2: Convert to fraction form
    296,912.78/409,765.56 = 162,802.70/x
  3. Step 3: Cross multiply
    296,912.78x = 409,765.56 × 162,802.70
  4. Step 4: Simplify right side
    296,912.78x = 66,710,939,535.01
  5. Step 5: Solve for x
    x = 66,710,939,535.01/296,912.78
  6. Step 6: Final answer
    x = 224,681.94

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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.