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Finding the Fourth Proportional to 374,313.28, 561,409.62 and 104,448.40

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Solution

The fourth proportional to 374,313.28, 561,409.62 and 104,448.40 is: 156,655.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,313.28 : 561,409.62 = 104,448.40 : x
  2. Step 2: Convert to fraction form
    374,313.28/561,409.62 = 104,448.40/x
  3. Step 3: Cross multiply
    374,313.28x = 561,409.62 × 104,448.40
  4. Step 4: Simplify right side
    374,313.28x = 58,638,336,553.61
  5. Step 5: Solve for x
    x = 58,638,336,553.61/374,313.28
  6. Step 6: Final answer
    x = 156,655.77

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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.