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Finding the Fourth Proportional to 446,064.40, 668,875.20 and 161,743.60

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Solution

The fourth proportional to 446,064.40, 668,875.20 and 161,743.60 is: 242,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,064.40 : 668,875.20 = 161,743.60 : x
  2. Step 2: Convert to fraction form
    446,064.40/668,875.20 = 161,743.60/x
  3. Step 3: Cross multiply
    446,064.40x = 668,875.20 × 161,743.60
  4. Step 4: Simplify right side
    446,064.40x = 108,186,282,798.72
  5. Step 5: Solve for x
    x = 108,186,282,798.72/446,064.40
  6. Step 6: Final answer
    x = 242,535.12

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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.