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Finding the Fourth Proportional to 446,077.40, 668,894.70 and 161,756.60

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Solution

The fourth proportional to 446,077.40, 668,894.70 and 161,756.60 is: 242,554.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,077.40 : 668,894.70 = 161,756.60 : x
  2. Step 2: Convert to fraction form
    446,077.40/668,894.70 = 161,756.60/x
  3. Step 3: Cross multiply
    446,077.40x = 668,894.70 × 161,756.60
  4. Step 4: Simplify right side
    446,077.40x = 108,198,132,430.02
  5. Step 5: Solve for x
    x = 108,198,132,430.02/446,077.40
  6. Step 6: Final answer
    x = 242,554.62

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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.