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Finding the Fourth Proportional to 446,088.40, 668,911.20 and 161,767.60

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Solution

The fourth proportional to 446,088.40, 668,911.20 and 161,767.60 is: 242,571.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,088.40 : 668,911.20 = 161,767.60 : x
  2. Step 2: Convert to fraction form
    446,088.40/668,911.20 = 161,767.60/x
  3. Step 3: Cross multiply
    446,088.40x = 668,911.20 × 161,767.60
  4. Step 4: Simplify right side
    446,088.40x = 108,208,159,437.12
  5. Step 5: Solve for x
    x = 108,208,159,437.12/446,088.40
  6. Step 6: Final answer
    x = 242,571.11

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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.