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Finding the Fourth Proportional to 443,104.40, 664,656.60 and 162,585.20

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Solution

The fourth proportional to 443,104.40, 664,656.60 and 162,585.20 is: 243,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,104.40 : 664,656.60 = 162,585.20 : x
  2. Step 2: Convert to fraction form
    443,104.40/664,656.60 = 162,585.20/x
  3. Step 3: Cross multiply
    443,104.40x = 664,656.60 × 162,585.20
  4. Step 4: Simplify right side
    443,104.40x = 108,063,326,242.32
  5. Step 5: Solve for x
    x = 108,063,326,242.32/443,104.40
  6. Step 6: Final answer
    x = 243,877.80

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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.