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Finding the Fourth Proportional to 446,008.59, 668,862.93 and 161,639.60

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Solution

The fourth proportional to 446,008.59, 668,862.93 and 161,639.60 is: 242,405.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,008.59 : 668,862.93 = 161,639.60 : x
  2. Step 2: Convert to fraction form
    446,008.59/668,862.93 = 161,639.60/x
  3. Step 3: Cross multiply
    446,008.59x = 668,862.93 × 161,639.60
  4. Step 4: Simplify right side
    446,008.59x = 108,114,737,484.22
  5. Step 5: Solve for x
    x = 108,114,737,484.22/446,008.59
  6. Step 6: Final answer
    x = 242,405.06

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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.