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Finding the Fourth Proportional to 296,390.50, 409,018.91 and 162,254.50

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Solution

The fourth proportional to 296,390.50, 409,018.91 and 162,254.50 is: 223,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,390.50 : 409,018.91 = 162,254.50 : x
  2. Step 2: Convert to fraction form
    296,390.50/409,018.91 = 162,254.50/x
  3. Step 3: Cross multiply
    296,390.50x = 409,018.91 × 162,254.50
  4. Step 4: Simplify right side
    296,390.50x = 66,365,158,732.60
  5. Step 5: Solve for x
    x = 66,365,158,732.60/296,390.50
  6. Step 6: Final answer
    x = 223,911.22

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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.