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Finding the Fourth Proportional to 446,378.32, 669,568.56 and 109,420.48

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Solution

The fourth proportional to 446,378.32, 669,568.56 and 109,420.48 is: 164,130.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,378.32 : 669,568.56 = 109,420.48 : x
  2. Step 2: Convert to fraction form
    446,378.32/669,568.56 = 109,420.48/x
  3. Step 3: Cross multiply
    446,378.32x = 669,568.56 × 109,420.48
  4. Step 4: Simplify right side
    446,378.32x = 73,264,513,228.11
  5. Step 5: Solve for x
    x = 73,264,513,228.11/446,378.32
  6. Step 6: Final answer
    x = 164,130.98

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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.